>>51784766In a casual sense, powercreep do not matter as Youtubers have shown that any Pokémon above Caterpie or Kakuna can solo any mainline game, neither less do its part in a team of 6.
In a competitive one, powercreep can help spice up the meta, especially in a game that doesn't have an incredibly high skill celling like fighting games or arena FPS, as the only thing worse than a broken meta is a solved one.