Markel was entitled woman, who didn’t understand the job of the Royal. They have very nearly the easiest job in the world and Markel thought she was entitled to not learn the job.
Imagine if you were King, and you were handed a speech to read, denouncing the "far right extremist" demonstrations, and saying how the migrants were enriching Britain.
You'd have to say sh*t like that all the time. And you couldn't say otherwise, couldn't write any books or novels or even online posts that disagreed.
The Royals live luxuriously, but they must live as puppets, their every move and word orchestrated by others.
I doubt it is easy for senior royals. The late Queen Elizabeth II did hundreds of events per year into very old age.