Exactly! Thats why his experience on its own isnt any more evidence. Win and Loose statistics are bugged. That is a fact deriving from personal anecdotes of a lot of Players. Together they can at least give a clue on what is the truth.It's called anecdotal evidence, in general anecdotal evidence of any kind tends not to provide proper proof of something; so everyone's personal experience is on the same level elevated from reality.
I remember having an Ungodly amount of lost games after 100 hour. Played 90 RS but somehow had hundreds of lost Matches in RoH2 and only a few won. Strange right?
Well might just be me unless.... Dozent of other Players Report that it gets more likely.