The transition to 3D really killed GameFreak's ability to create substantial games. We left off the sprites era with B2W2, a game that's criminally underrated by casuals because they don't like the designs of some mons. 6th gen dropped and completely shat on everyone's expectations. No sequel to fix XY's flaws, a lackluster shithole in ORAS, only to rush the series to gen 7 where the only improvements were in the graphics and everything else dropping in quality. They got rid of the national dex and are trying to abandon the Gotta catch em all mojo that made the franchise what it is. All because they can't be fucked to be proficient with their programming.
If only they decided to stay with sprites, just with polished animations to fix people's complaints with gen5.