As much as I love Morrison's actual writing skills (which are stellar IMHO), I admit was off put a tad by his run's ending. But it has grown on me, and I cannot say it wasn't well/brilliantly-executed, and it boldly subverted my expectations (and probably Morrison's own expectations!) to raise and highlight a poignant point about Batman's current state of affairs and his corporatization. Morrison praised Snyder, and Snyder praised Morrison, but Morrison's end I still see as somewhat a meta commentary also on Scott Snyder's version of Batman* (which I believe Morrison likens to Miller's Batman and other Post-Crisis versions he didn't really care for, I doubt Morrison much liked King's version as well though I'm sure he'd never admit it or utter it).
(*so in a way, Morrison ends with the precise commentary he started with in Arkham Asylum, which was an elaborate commentary against Miller, Moore, etc.....full circle)
Bravo, an unbelievably insightful and accurate theory. You or someone could write a book about this.