I don't mind having an account with Facebook. I already have an Oculus account, and I add "Oculus friends" there, so I assume Facebook can get all my data from there, anyway (including my real name, as I added my credit card to be able to buy games).
But I find I mind having to befriend my gaming friends on Facebook, as I may share different content there.
In fact, if Facebook wants to become the ultimate social network, shouldn't they somehow offer better tools to manage different social circles? (Work, Family, Gaming, Sports, Politics...).
I don't think their play is to get my Oculus data to make better targeted ads. They already have that data.
What I could imagine is that the future of social networking will be in VR worlds, and since they want to dominate social networking, that's their power grab (they also work on a virtual world for that, Horizons).
But it seems to me their "friendship management tools" are not up to the task yet. I've never digged deeply into their controls, but it shouldn't be complicated.
It's not a new concept, either - weren't there "circles" in some network (Google+?). But it didn't work out. So instead of forcing this VR merge, perhaps they should focus on solving the circles problem first?