The guy seems to be standing by his statement, saying games will run twice as fast.
https://twitter.com/draginol/status/452218254572810240
Maybe the API at launch really wasn't that good. Maybe they didn't spend too much time on it because they knew DX12 was coming. Seems odd. I'm inclined to believe the gains will not be nearly what he's claiming them to be, but I also wouldn't be surprised if they're measurable, despite a lot of people saying it won't make a difference.
If they really want to prove something and make a splash, announce DX12 1080p patches for COD and BF4 at E3.
THIS is what we need!
Best XBO news in awhile!