BEHOLD! I AM BECOME GEOFF JOHNS, DESTROYER OF WORLDS: Love Sean Witzke's take on Flashpoint and Geoff Johns. A snippet:

So here we are at 2011, which is a fallow period for every edge of comics concerned...[...]...the now-even-more-corporate DC comics decided that they need to make a move, and they decided that Geoff Johns had the right idea – and streamline everything. But instead of just doing what Johns does, which is essentially write his way out of a corner, they’re throwing the baby out with the bathwater and chucking the entire universe. Worse yet – they’ve hired Johns himself to perform the act of destroying the universe he loves so dearly. I believe that he took the job knowing that if he didn’t take it, someone else would. Someone who probably wasn’t going to apply the care he would (whether you or I agree with this, the simple fact is that Johns loves DC comics in a way few do). So Johns took the job, and decided that it was best to tell the story in an alternate world apart from the DCU he loves.

 Man, I actually wasn't that convinced that this would really be the last time we'll see the old DCU, but Sean's logic (that streamlining Green Lantern worked, so Warner thinks to itself, in its simplistic corporate hivemind fashion, that streamlining the whole shebang will work even better) is sound, and it's not like DC hasn't pitched previous versions of its multiverse before, never to be seen again (even post-52 we didn't really get the old Earth-2, Earth-X, Earth-S multiverse back, just something that sort of resembled it but without its vitality.)