Total nonsense, otherwise they wouldn't let unofficial patches exist on PC too. Every other Bethesda game has shown that the unofficial patches can come out concurrently with official patches without any real problems. And if anyone thinks Bethesda won't permit the unofficial patches out of "pride", well, Bethesda isn't petty.
They've said that they want as many mods as possible to hit the consoles, regardless of how much they could potentially break the game. The only limits they've expressed were things that break their terms of service (nudity, child-killing, copyrighted assets, etc) and things that outright won't function on consoles (script extenders, ENB, 4k texture overhauls, etc).
ENBs or anything that requires an external program or injector are almost definitely out of the question. But mods like http://www.nexusmods.com/skyrim/mods/52423/? or http://www.nexusmods.com/newvegas/mods/35794/?, which only use the in-game lighting effects and settings to overhaul the lighting, should totally be fair game.