Honestly, I'd probably be one who complains that. And I'd complain the same thing if I had an xbox one. I know it's cause there are no games I'm interested in. Well not really no but nothing super exciting yet really (it's sad this year the most excited for a next gen game I am is for one that was on PS3, GTA V. And Witcher 3 next year. And whenever Fallout 4 comes out. And yeah, that's my list of what I'm excited for and one of those I'm only assuming will eventually come out ... it better). Oh, and of course I won't complain about any future single player Elder Scrolls

(Though I do think I prefer Fallout).
So yeah, I would bitch that, and yes, I think it's more of a next gen complaint (or future games in general really as for PS3 I'm just excited for Borderlands prequel and Persona 5) than PS4 specific. Oh, and the fact that my favorite games are RPG games and I'll complain it seems like it is mostly shooters coming and indies you see coming out (and most indies are platform and not very story strong and I'm not a huge platformer fan and I really prefer playing a story of some sort, not having a story as an excuse for the game). Though I am excited for Dragonfin Soup. And don't give me Dragon Age or whatver it is that is coming out this year, it's EA and I won't buy their stuff. It's the only game that makes me sad I won't buy EA games (and I used to love Sim City but they ruined it).
And maybe also I'm too picky. But I'm on a tight budget so it's probably good I'm very picky on what i get really excited for.
But honestly, I think the people who bitch that are looking for AAA games (I can't say I'm not guilty

) and also some reason assume that cause PS4 is getting lots of indies that that means it won't get AAA (what, there's only so many slots of games a console can have so if it has indies it some how can't fit in AAA games too?). Personally I mostly prefer third party and I have full faith PS4 is going to get supported there (which is why I already bought one). Nothing is leading me to believe it should not.