And to be honest that angle I timestamped is the most clear out of them all. Looking back at it again, I think all of the KDs were legal scoring KDs. There may have been some rabbit punches in between them.. Idk
The only 'dirty' thing I have seen Beterbiev deliberately do is step on a guy's foot to limit his mobility, which is fairly tame as far as illegal moves go. That was in the fight where he got a gash the size of the Grand Canyon headbutted into his forehead so as far as I'm concerned fair's fair.