>>53569148I don't know which youtuber or twitter account this meme came from, but it wasn't an issue 15 years ago
Like, enemy AIs have known type compatibility and to actually attack the player since like gen 2. Hell, gamefreak has included 'smart' AIs that even predict moves and switch accordingly in every game from Emerald to BDSP. Enemy AI certainly isn't some sort of design restriction.
The lowered difficulty is a deliberate design choice made so that little timmy can safely wall it with a rock type and never have to learn about status moves or type coverage, making the product more digestable to the lowest common denominator of its audience. And then go on to bring that rock type to every online raid with the flying icon
