Well, it seems like most of the titles came out okay with the soft/semi-"reboot." I think "Batman" probably needed a harder one with some origin story/early Batman career like Superman got but -yeah- I get all of the backstory and stuff he has was wanted to keep intact to please many people. But it seems like a lot has now been crammed into a short amount of story time (multiple Robins, the Killing Joke and so much more) I think Batman could have dealt with a tougher reboot or one of his four books could have taken place in an early Batman career or been an origin/beginnings even getting to a point of introducing a Dick Grayson Robin.
Perhaps from a creative point of view, yeah, but from a business point of view, no. It was far to popular to just wipe the slate clean.
And to be frank, I haven't read Batman in YEARS, and it wasn't hard to pick up these number 1s and understand what was going on. Bruce Wayne dresses up at a Bat and fights crime. There has been nothing particularly confusing. It's like back in the day when you would buy issue 137 of something to try it out....
A clean slate though WOULD make things like was Tim Drake Robin or not more clear, but whatever, in a few years no one will care.