>>37878598XY has things like like the early game forest (where you can catch CATERPIE and WEEDLE and PIKACHU) literally 1:1 follow the Viridian Forest layout, or "dude you beat the game, here's MEWTWO. IN A CAVE!"
While "just" having 150 new monsters, BW decides to be a whole new region that very rarely makes callbacks to the other regions. You can't even catch Pikachu itself prior to post-game. So the world, coupled with the entirely new pokedex of creatures, really offers player the chance to have an experience of discovery of the setting and its creatures.
Or 2/10 can't raise MUH BRO worst gen ever. Whichever you want to see it as.
