While I don't disagree with any of the facts you've stated here, its mostly irrelevant to the original point of contention. Facebook bought Occulus because they believe in the future of this technology and they believe in the company. If these pain points still persist, they simply will not release a product using it. They did not acquire Occulus for the technology they currently produce, but for what they will produce in the future. It is simply incorrect to evaluate the potential of this pairing by what the technology currently is.