There might have been similar threads in the past, so I apology if one of them is still active.
What Pokemon typing and evolution do you think make no sense as they are now?
For example Gyarados being Water/Flying instead of Water/Dragon etc. Why is it part flying since it has no wings? I believe it levitates, it doesn't fly.
For evolution, why isn't the evolutionary line of these Pokemon: Hitmontop (being the baby form) > Tyrogue > Hitmonchan? It visually makes more sense.
And so on... it doesn't have to be limited to only these two factors, pretty much anything you would have changed/retconned because you think it's illogical and weird.