Oculus DRM doesn't work like that at all. Anyone can program against the oculus API and release software for it. It's not like there is a standard VR api (OpenVR is anything but, it's controlled by a single company with their own intentions).
Correct, it's more like buying Microsoft Flight Simulator and not being able to run it because your monitor is not a genuine Microsoft monitor.
Oculus DRM works by locking the "Oculus exclusive" software to the Oculus hardware. Hackers, of course, have cracked that nut, so the usual arms race against offensive DRM has begun.
