There’s no way Henderson will speak out about the Saudi leaders while he is getting paid. MBS put loads of his own relatives and rivals under house arrest, and some of them have not been seen for quite a while now. What happened to them? If what he was willing to do to Khashoggi is anything to go by, it doesn’t look good.
Hendo will keep his yapper shut, train, play, and collect the dough.
It’s not about being paid, but about not crossing MBS while being physical present in his country. Or even in the case of Khashoggi or Salma al-Shehab having previously done stuff to promote criticism of him and then set foot in his country.