Don't worry...that guy's videos generated huge discussions as well (a couple of years ago) with him being rated anything from 3.5 to 4.0 before somebody found out his name and dug up his record.
Surprise surprise he was a computer rated 5.0 as far as I remember.
New heroes are now rating this other guy a 3.5, 4.0....luckily for them he's not in North America to have a real NTRP record proving them wrong. But that's OK...they are wrong anyway

).