He talks about it several times already as far as I can remember because he compares his luck this year with the previous year.
It seems that his luck was better last year so he thinks that the RTP is changed so he gets worse luck this year.
At the same time, there are still some other players who get good result so I dont think that the RTP is changed as what he thinks.
Logically, if it is true that Stake changed the RTP (lowering) then most players would have lost more this year but in fact there are still players who make decent profit.
RTP on each game can’t be modified by the because it’s from 3rd party services. We all know that lowering the RTP of the casino is just a speculation or rumor but there’s no proof about it. Some players lose while other players win.
I thought he is pertaining to the RTP of the casino in regards with bonuses(monthly, weekly bonuses) that will be increased to boost the number of players since there’s a sudden drop on bonuses amount when we compared before and now even though the wagering amount is the same.