Considering almost everyone hates on Facebook and is sort of forced into it due to the network effect, I wouldn't call this move brilliant.
It is brilliant on Facebook's part. They know they are widely loathed among internet users. They can use this Oculus acquisition to show the world that they aren't just some evil creepy web site with no regard for anything but their own profits.
Consider:
Facebook has one of the largest user bases on the planet. Facebook has vast amounts of capital. Facebook has just demonstrated how important they believe VR to be.
With Facebook's users, money, and engineering talent, VR is about to arrive earlier, faster, and better than anyone could imagine.
I plan on buying Facebook stock immediately.