Why does Jesse Cannon hate Facebook ads?

Jesse Cannon is a music marketer with a YouTube channel. Something that he mentions often in his videos is how much he hates Facebook ads, and I can't understand why.

Almost all of the biggest artists in recent years came from paid advertising. Sabrina Carpenter and Olivia Rodrigo. Both from Disney. Both had no music career prior to Disney hooking them up with producers, and spending millions of dollars on advertising to market them.

The boy bands of the 90s, Nsync and Backstreet Boys were literally created by the label in office. Had zero following prior, became successful only after paid marketing.

I get his point, in that it can distract artists from making content, connecting with their fanbase, and other forms of marketing. But still, I don't understand how he can despise Facebook ads so much after all of the most successful artists of all time have all utilized paid advertising. What do you all think?