He put a video up about this a couple of weeks ago, and rather than YouTube's algorithm being to blame, it was more him struggling to keep up with his audiences constant demand for more progress with more super sketchy features that he was basicly building constantly.

"the Algoirithm" often gets sited, but it's often a youtuber's interaction with thier audience, the pressure to keep up with demand, rising success and not wanting to miss out.