LOS ANGELES — “Taylor Swift Broke Ticketmaster!” That was the gist of headlines two years ago, when Swift’s Eras Tour resulted in a ticket-sales fiasco of epic proportions. Hordes of Swifties freaked out over a) their inability to score face-plus-fees entree to the Tour of the Century or b) their inability to even connect to the Ticketmaster website amid the crushing demand. But then many ...