Theoretically, the point of venture capital investment was exactly to give such a "no-strings-attached" period of buffer time to discover what revenue models might work for a new piece of technology with promise. (In reality there are many other confounds...)

It's why many people wished to see that rather than an acquisition (where the new owners can do what they want) for Oculus. Back in the day, FB tried to placate these worries by suggesting that even with an acquisition they would try to behave like a VC and keep Oculus more-or-less independent. At this point it is clear that that dream is over.

People aren't angry, just disappointed. Eventually we will all lose hope on these things. Heck, many already have.