It does specifically say revenue of a single show. Which as far as I’m concerned would include all ticket sales even if the proceeds from those sales don’t entirely go to Taylor. Though I do agree the headline is a bit disingenuous. If I’m being generous I’d say they’re referring to Taylor Swift the money making apparatus and less so Taylor Swift the person.
They repeatedly say “Taylor Swift earns”. If they were concerned at all about presenting information properly, they would say “gross income from a Taylor Swift concert”. It’s outrage clickbait, through and through. While I agree that Swift makes an outrageous amount of money, that outrage should be based on fact, not hyperbole.