and did nothing, Oculus didn't just need money, but a competent team behind it.
Facebook might have helped but from a purely technical perspective, Facebook wasn't the only path.
Currently the Quest is the only Android based (and thus fully stand alone) headset that's wasn't Daydream branded and wasn't killed when Google mothballed their VR support. There's less now then there were, or would have been if Google stuck with it.