Don’t look at me, I didn’t video this. :P I use head mounted and body cameras where I have the opportunity - I certainly wouldn’t attend any such event without my recording rig.
That said, in addition to what Jeff here says, I suggest turning your phone sideways for landscape mode so we don’t have to look at awful vertical video.
A more advanced step for people who understand enough about photography to actually point the camera at the subject. Once they master that, I suggest they stand still.