Haajo Seppelt clearly has an anti Russian agenda. When he starts questioning German sports, I’ll take him more seriously.
He has critisized German sports many times over the years. GDR children's doping, Markus Choina and German cyclists, German anti-doping agents and anti-doping systems, German winter sports athletes (the German skiing association reached a temporary order against him), and so on. He also took Chinese, Brazilian, Ethiopian and Kenian sports on, for instance. In short, he looks where he thinks he can find something, and although he's not god himself he has brought many things into the spotlight that deserve to be there. If you think he has an anti-Russia agenda it's probably you who's biased.