We're also in a world where all the founders of Oculus have quit and no longer have a say in decisions like this. Facebook foundational employees and recent hires are running the show and the end game for Oculus is to give Facebook a platform that they control that is as pervasive as iOS or Android (or at least Xbox or PlayStation).
As a former Oculus and Facebook employee I'm torn by this. I always understood how a none trivial portion of the Oculus user base is extremely anti-Facebook, or even how people with Facebook accounts didn't want their Facebook account tied to Oculus. At the same time it would seriously reduce technical friction around using Facebook backend features in Oculus products. I know some folks would see this as a complete negative and I understand where you are coming from, but there are some interesting positive use cases as well.