HGSS, FRLG, Emerald, BW2 and Platinum were all pretty good games with enough content. (BW was good on plot alone, not so much for postgame). While HGSS and FRLG were flawed in not fixing the curve, it did have new things to do and attempted to fix available Pokémon with the SafariJohto's case), unlike ORAS, who didn't have much to fix, yet they screwed it somehow.
Don't fight. Those games I firstly mentioned are good and enjoyable and or have post-game past-times such as the film studios, tournaments, Safari/Kanto/Red/Legendaries/Rematches, Sages... Whether you don't like the games (= you think the cons outweigh the plentiful pros) doesn't matter. There is objectively content in those games and they are enjoyable.
Sadly, GAME FREAK will never ever go back to those days. We will never see something like the Johto Safari again, or the PWT, or film studios, or the many Sevii Islands. We will keep getting a "postgame" miniquest (Delta, Looker, UB arcs) that are mostly extensions of the main game since (except Looker in XY) they actually ARE stopping you from reaching a good portion of the postgame (Resort in ORAS, Battle Tree in SM).
Just don't hate on the good games.
