The reality is that touring is where most musicians have to make their money these days. Digital pirating and the “sharing” services have totally changed the game. A generation or so ago a “hit album” or two and you were set, not any more; millions of copies of that album can be distributed around the world and you won’t see a dime.
In a way it is like a return to the music business before the LP and the single. She is just one of the best at adapting to the new (old) environment.
Thanks for the explanation; I’d heard stories like this from musicians I know, but didn’t know it was this bad.