How is an awesome and logical extension of a storyline the worst idea ever? Batman has been a brand for so long in the real world, that taking that idea to the comic world and providing great narrative reason to do so, while also giving introducing/revamping a host of worldwide characters seems like a great fucking Batman story. And it was!
If you followed along with the story, it gave Batman the posse he needed to take down a supposed worldwide crime syndicate. The sheer amount of great things that came from Batman, Inc, and the amount of ideas he pumped into there, tying up 7 years of Bat-books, is incredible. For fuck's sake, it even works in two different DC continuities with the New 52 being worked in slightly.
Also, Bruce Wayne has a business, and this was a smart way to tie in Bruce Wayne's business life with his true passion--motherfucking Justice.
Snyder is a great writer but, prior to Zero Year, he was becoming almost formulaic and he had trouble sticking the landing on his arcs, and as somebody who was fully on-board with Court of Owls--I got entirely sick of it by the end of its run and didn't give a shit about how it would pan out. Lincoln March was a terrible idea.