A quick fix for this problem is to start the video while on one side of the room and them move across the room irl. The video player controls will stay in place, but everything else moves with the headset. Essentially side-stepping the video player.
I have the same problem. I tried remaping the Oculus touch controler profile in Steam VR with no success. Linking the "Hide video player control" to another button than the grab trigger in the program would probably solve the issue. Thanks.