Never had or seen a stripped Robertson, they are robust AF. Don’t ask me the physics. (They go deep into the screw head because of the simple shape, maybe that has part of it. And they are tapered, it’s not just a square, so they manage to grip the bit like a mofo. You don’t cam out of a Robertson.)
Robertson is tapered, so you just have to hit the hole somewhat and it’ll guide itself in real easy. Torx is fickle to line up and orientate.