Strange move, people use adblockers for a reason, 2-3 unskipable bs ads. Instead better limit quality to 480/720p. This way they'll save money for traffic. No adblocker?, Can go up to 1080p. Yt premium?, Welkome to 4k. Yt premium+?, Welcome to >8k
Stuff like conference talks, of course, really don’t matter but there’s so much material that no generalization won’t be inaccurate for millions of watchers.
If people leave because of this that cuts their costs to zero. What's their incentive not to do this ?