The jury is still out on Oculus revolutionising VR or not. Technologically, Oculus has become more like Google's Daydream than anything else - inside out tracking of the device and controllers, use of a cellphone computational power for standalone operation, etc...

The original technologies that were introduced have now been abandoned by Oculus, on Carmack's advice, except for implementation details that haven't been hugely impactful, unlike with 3D gaming.