The grandparent is implying that "Taylor Swift" and the "Evil Manager" are two sides of the same coin; they don't need to even be different people. The system lets a (big) artist extract value while keeping their public image clean. It's a shell game, and Ticketmaster plays the role of bad-guy-as-a-service.

Of course, their insane monopoly means they also get to take advantage of smaller artists, venues etc. None of this is good.