He felt he was untouchable and that his cult of personality was powerful enough to shout down any possible dissenters and leakers.
I think he was so angry with Dijana for daring to back out of his "ethical" whore mongering, that he planned to have his minions teach her a lesson....starting with Kim & Producer Bob.
Then if that wasn't enough, he would summon his Demons patrons to let her know in no uncertain terms she was in the wrong! (you could see it in his eyes during that "I need a break" video: Cold. Narcissistic. Petulant. Fury.)
What he has now is sufficient to live on semi-comfortably but it comes nowhere close to his ultimate dream which is retirement and full pension on the exJW dime.
Yup. He's still after that holiday home. That letter clearly intimates that Dijana enjoys their comfortable lifestyle and needs to be grateful to him for getting to spend all that exjw ca$h.