I agree with you almost entirely, but if we're being honest, there really hasn't been a lot of innovation in their games since Gen 4, and that was almost 20 years ago. Once they figured out the physical/special split, nothing really changed in the major mechanics. They have a new gimmick mechanic every game, like Z-Moves or Dynamax, but they're always dropped by the next game. I guess camping/picnics are evolving into a new feature, but that's about it.