[mrguyorama]

>YouTube recently introduced an AI-driven policy that automatically places suspected under-18 accounts into Restricted Mode

This is blatantly false. This was a single youtube channel's mistaken belief

It was incorrect. Restricted Mode is completely unrelated to the issue, and plenty of the videos that are doing just fine are not available if you have restricted mode on.

There's still no definitive answer IMO, but it might be that an analytics endpoint was blocked by ad blockers.

Note that the people affected by this problem say they are getting the same revenue, just view counts changed. That means their videos are getting the same number of not-adblocked views.