This is an interesting take from a Youtuber I like called Rick Beatto;
https://www.youtube.com/watch?v=gdQAEEwgx1E
That said, I don't buy the Stevie Nicks attitude/Lindsey Buckingham attitude.
I think the situation is much more nuanced and I'm not even sure how much involvement the band members themselves have in blocking Youtube clips
(but I do know from many other Youtubers that Fleetwood Mac, along with Eagles, are really big blockers). I think on this occasion the TikTok wasnt blocked as they just didn't get a chance as it blew up so quickly.