In defense of the XBox1, the PS4 barely pulls off a solid 1080p@60 for Tomb Raider DE, which is a last gen game with visual upgrades... If that game on the PS4 drops down to low 30s at times, and KZ:SF is 1080@35, I don't think his statement is so far-fetched to not expect 1080@60 anytime soon. 1080@60 has largely been a PC spec (of course, PCs are now doing 1440p@60 and/or using visual surround with triple monitors).
I've said it once before: the PS4/XBox1 getting a solid 1080p@60 will most likely have to use the same kinds of visual tricks that became popular on the PS3/XBox360, essentially taking shortcuts that are barely noticeable to the naked eye or are not in focus. (One prime example is how in-game cinematics on the PS3/XBox360 used HQ models that were swapped out to low-poly models during gameplay to keep gameplay smooth, something that started earlier than those two systems, but became so well optimized and deployed that it's become a given that we expect cinematics to have higher quality than the gameplay)







