when I look at the drummer I cannot share the criticism of PSR. It's all about on which side the drum is hanging (should be over the left leg). OK, this is when he is drumming, but the guy just carries the drum on the right back side. He is not drumming - probably just "on the march".
Many recent criticisms from PSR on Steltsis is on pose choice. However, this is free choice and appeals differently to different people. Not a figure to dump out of principle at all imo.