Different people may have different views on what drags down the board i suppose, didn't seem that bad to me - i've seen much more dismissive versions of the same sort of video recently. I didn;t go and check he's a 'real' professor - the views he gave on 5g seemed like the default 'science' view on those subjects (ie following a basic physics intuition comparing 5g frequencies with eg light frequencies, rightly or wrongly) - people can have blindpsots and you can disagree, but i think imposter is a bit dramatic in this case.