I'm pretty certain you won't ever need a Facebook account to use Oculus Rift.

I don't even like the concept of associating with Facebook in any way. I don't want to have to justify myself when I go and buy an Oculus Rift ( "The money is going to Facebook, but it's okay because they have really awesome technology, even though I hate everything they stand for in every other market they're in" )

Ok, if you're so full of hate for Facebook then I understand why you don't like this deal on an ideological level.

Let's think about the priority Oculus will now give to supporting random games that aren't connected to Facebook's business interests.

That's what doomsayers usually say about these kind of deals but I have yet to see it happen. Let's see if you're right this time. I don't think you are.