Board Thread:Metal Gear Solid V/@comment-25168690-20160817194149/@comment-25366375-20160822121300

Black Chamber Bison wrote: Mission 51 isn't really Konami's fault. I think that to say whose fault it is either way is reductive and fallacious. None of us know the truth, and they were probably both at fault. Sorry for the off-topic, but yeah, seeing this kind of thing annoys me on both sides.

Apparently Konami confirmed Survive is non-canon, so that's a relief at least.