>>49284896>I don't know why they decided to ditch this graphical and artistic style afterwardsIt's all a part of GameFreak's new game philosophy, which is "throw out literally everything except Pikachu, Charizard, Eevee, Mewtwo and Lucario and reinvent what was tossed even if we really don't need to".
They're doing this because people have criticized Pokemon's been too "samey" for too long now, and aside from Legends, their biggest project ever, GameFreak is not ready to seriously innovate often. So, rather, they mask their incapability with constant graphical overhauls, hence the sheer inconsistency in everything but the Pokemon themselves (once you look past their lighting and shading differences in each game, obviously) for every game on Switch.