Post-game for Pokemon has always been a thing I invest more in the 3rd game rather than the initial two. When I first get a new generation of games, I typically spend a lot of time experimenting with teams and catching the new pokemon. I don't really have the time to go into post game much. When the next game comes along, I already have a good grasp on the pokemon and can work on post game more. I don't think that excuses a crapy post-game, but it's just not a big deal for me. Hopefully X/Y-2 will have a nice and robust end game.