I think that Morrison just operates in his own little world, continuity be damned. Didn't he directly reference his JLA run in the first issue or so of the New52's Inc.?
NEW 52 continuity doesn't work for me either. I'm with Morrison, per-say. As streamlined as possible, even though I have many single issues between these arcs and others like
Brubaker's Batman run, Rucka's ec Run, Gotham Central, Dini's Tec run, Batwoman, etc...
Roughly 15+ years have happened since YO.
YO
+5 years
TLH > DV > R:YO > BGirl:YO > NW:YO > Batman 408/400 > KJ > DITF > APOD > (Talia & Bruce create Damien)
+5 years
KnightFall/Quest/End > Prodigal > Contagion > Legacy > Cataclysm > NML
+5 years
Officer Down > Murderer?/Fugitive > Hush > Resurrection Of Ra's > BlackGlove/RIP > Batman & Robin/Black Mirror > Batman Inc Vol 1
+1/2 years
Owls/DOTF > Batman Inc Vol 2.
No way Snyder/Morrison and co. can make hints and nods to the past without all of this happening. And this is by far the tightest one can make it. Oh, and Tim was Robin... don't care what DC says, idiots. Bruce, Dick, and Tim can all pass for mid thirties, early thirties, and mid twenties respectably. If Johnny Depp, Chris Rock, and others look 25-35 while being 45-50, without the amazing skills and talents of the Bat Family, then Bruce and Co. can be "older" while looking very young.