I saw that clip (its been out for a while). Wanna see real change in the music business? Have major rabbonim / rosh yeshiva agree not to attend a chasseneh where a pop star is hired (and at $10,000 a night, you can’t call them anything else).
And by attend, I mean not the chuppah, not the dancing. Just not show up. No matter who or how rich the baal simcha is.
Until then, the pop-star singer has the full endorsment of the establishment..no matter how many posters or ads they print.
(for the record, I’m a huge fan of most of the banned performers)
As far as Rav Amnon in particular, like all other bans, some will listen, most will not, but even if just one person makes a change in their music habits, Rav Amnon will feel he’s accomplished something.