> This seems contrary to so many other complaints we see all the time, that companies push changes out without taking into account what users actually want

Are you not aware how unpopular practically all recent changes on YT are among its users? Almost none of the changes done on YT in the last 5+ years would have happened if they took into account what users & creators want. So how exactly does telemetry and A/B testing help when it either tells them the opposite of reality or they simply interpret the data however they like anyway?