His reasoning behind this change is clearly visible imo. Yesterdays "Dont tell them" video already has over 30k views, a new one on "if you say hitler wasn't a socialist you are denying the holocaust" has over 9000 after six hours, while weekly old videos like the courland pocket dump around under 25k. Its all about clicks when one wants to stay relevant on the internet, and I think he has finally drawn the correlation that people with "centrist" political views would also be interested into vids like these, as well as 2ww history and thus manages to get them to stick around at his channel. Just a clever marketing strategy from his side. That or he has completely gone crazy.