Given there are is no touch feedback when you feel surfaces in VR and that just holding your arms up in the arm for long periods of times is tiring, I honestly don't see why it's any better than pointing on a 2D surface.
People wanted to do Minority Report-style UIs when they saw them, but we generally don't interact with computers in those ways for the same reason. Keyboard and mouse (or trackpad) is going to be hard to improve upon.
Given there are is no touch feedback when you feel surfaces in VR and that just holding your arms up in the arm for long periods of times is tiring, I honestly don't see why it's any better than pointing on a 2D surface.
People wanted to do Minority Report-style UIs when they saw them, but we generally don't interact with computers in those ways for the same reason. Keyboard and mouse (or trackpad) is going to be hard to improve upon.