You're right, but at the same time it seems there was little forethought given by the writers and editors in terms of a plan, even amongst the core titles (the Bat-related books, Superman books, etc).
It's one thing to try to shed unnecessary continuity, and another thing entirely to unnecessarily create a mass of confusion regarding that issue. While continuity can be a thorn in the side of writers, it can also be a useful tool when the writer actually does their research and has the talent to use that for the greatest effect.
And like it or not, for people who've been reading the books for awhile (whether it's 2 years or 20), no one's very happy with the lackluster and half-assed approach The New 52 editorial teams have taken. Some stuff has happened, "but in a different way". Seriously? How about at least figuring out a general plan before you go shedding or altering past stories and confusing the hell out of your audience. Hamstringing as it can be, it's still important to fans. When one book says one thing and another something completely different, it strips the books of any coherence or logic (strained as that can be in this medium).
Granted I'm a continuity whore so it irks me more than most, but I've read countless posts and questions to DC editors/writers at cons with the same issue. So again, in my opinion the New 52 has created more problems than it solved. There's no cohesiveness.
Granted, I'm a bit spoiled in terms of forethought and planning a cohesive universe from the Valiant relaunch (though each book stands squarely on it's own). Much respect to the writers and editors of those books who took the time to plot out a general course for their respective books and the overall universe. Just wish DC could've maybe put more thought into their approach.