Being a fan for a long time, I've heard the same constant complaints regarding a ton of Pokémon, and they are all the same and there are answers to all of them if people would just pay attention to the games a bit more. There are a handful of the big ones that I'd like to talk about in this part and those are going to be why Psyduck is not a psychic type, why Luxray is not a dark type, Chikorita & evolutions are an awful design, Charizard should be a dragon type, and that Ice types should be stronger.
So, starting with the tale as old as time, the question as to why the Pokémon Psyduck is pure water type and not psychic/water dual type. The question comes from the fact that both Psyduck and its evolution can learn the moves Confusion and Psychic, both of which are usually good for when you have them. First point of this is that, if you are basing a Pokémon's type only on the type of moves it can learn than you'll have a difficult time because there are some Pokémon who can learn a ton of different type moves, so that's not a good way to judge that. Second, and this is where people just need to pay attention, Psyduck's Pokédex entry states that, while it does have the potential for massive psychic power, the power only comes hand in hand with splitting headache which, based on the entry, sounds less like Psyduck gets a headache when using its psychic powers, and more like the powers come with the headache. It's not intentionally and constantly psychic and I doubt that Psyduck enjoys the splitting headaches it gets to be able to use Confusion.
On to Luxray being a dark type just to break the generation order a bit. Luxray is a gen 4 electric type wolf-looking Pokémon with a ton of black fur and looks like it wouldn't think twice about mauling you without a second thought. As many people don't know, and I myself haven't known for very long, the dark type in Japanese versions is listed as the evil typing and many dark types don't look evil, but more like folk monsters or tricksters. There are also plenty of dark types where black is not on their main color palette which is where people get the idea that Luxray should be a dark type. If color was anything to go off, much like the moves a Pokémon is able to learn, then there'd be a lot of discrepancy since plenty of types have similar color palettes while being completely different types.
Finally, back to gen 2 where people say that Chikorita is a terribly designed Pokémon in reference to its other evolutions. Chikorita is the first stage grass type starter of gen 2 and fits into that category very well as its in line with not only the past and its own generation starters of still being small and cute, but this trend remains consistent throughout every generation. People seem to overlook that it's meant to be the type of Pokémon that you get to be your starter and that someone would be willing to give to a child to take them out on an adventure for the first time. The entire line, which I have seen garner the same criticism, still follows the same trend of cute first stage, kinda awkward but still neat second stage, and finally growing into its own in the full evolution and coming to the head of a full concept with Meganium having a hibiscus flower around its long neck. I believe this is also a problem of people equating that a good design has to be interesting as well, but there are plenty of plain-looking Pokémon who are still fan favorites, including my own favorite of Umbreon.
Back to gen 1 and I am going to make this short and sweet as to why Charizard should not be a dragon type Pokémon. Yes, it may look like a dragon but again design should not equal typing and it is also a matter of balancing the game. Even in gen 1 dragon types were extremely powerful with only two weaknesses that were only gotten late game and that you don't really have to deal with until the Elite 4 when you fight Lance. Charizard is already the most popular starter of gen 1, but if it was a dragon type there would literally not be a single reason to not take it because it actually removes so many of the types that would be super effective against Charizard due to the type combination. There would actually be absolutely no reason why you would take either Squirtle or Bulbasaur at the start of the game if the other option became on of the two most overpowered types in Gen 1, rivalled by the psychic type.
Finally, I want to end on the fact that people don't seem to get why Ice types don't have high defense which I feel should be obvious. Yes, ice can be strong in the real world, creating temporary landmasses and being practically impossible to crack much less break. However, people seem to forget that large chunks of ice can still be broken, and Pokémon logic doesn't take into account the massive glaciers and sheets of ice. Ice types also aren't super effective against much, just Ground, Dragon, Flying and Grass, and there are way better types for defensive Pokémon which are most commonly Steel types. Ice types are usually better used as quick-acting glass cannons as usually one of their attack stats is pretty solid especially in comparison to their defenses. People also complain that Ice has too many weaknesses in Steel, Fighting, Rock and Fire whilst most types usually have two or three, but all typing make sense. People just get mad because they can't use the Pokémon they want, usually competitively, the way that they want and aren't willing to think about why it's not working.
These are just the most common I could think of and give reasons behind why they are the way they are that aren't too complicated. All it takes is to just take a step back and think for a minute in games that have an elemental system as to why what works against what, and that you can't just base a design of a creature on what type is should be according to you versus what the devs actually gave it.
Have a day
ns 15.158.61.12da2