As someone who had to make this exact decision. Yes. So there definitely are "someone"s who'd do exactly this.
But if you are asking if the average consumer would do so? Unfortunately the answer is they probably don't mind using Facebook.
In my case, because of that, getting a Facebook account is hard, if not impossible, because those "real identity" checks are obscure: I attempted twice to sign up for work-related reasons, and I failed both times despite providing IDs and pestering support. I have literally NO idea why I cannot have a FB account.
However, even if I could, I hate Facebook so goddamn much that if this was my only option I would rather not use VR altogether. And I love my Oculus Rift, especially for game development.
I am royally pissed off, and I will gladly go forward with a class action lawsuit.
I am not sure whether you are trying to justify this move, or whether you are questioning that it will have an economic impact or really what the point is.