There was no doubt that they would take revenge.
For a practitioner, the most abhorrent thing wasn't being robbed by criminals or enemies, but being disturbed and even attacked in the midst of a tribulation, especially after a successful one. It was because almost everyone had to go through a period of weakness after a tribulation, during which, if one was targeted, all their efforts were most likely going up in smoke. No one wanted to have the feeling of falling from paradise to hell, specially these towering practitioners.
Therefore, in the world of the practitioner, it was the most abominable thing to disturb someone right after they have gone through a tribulation, or to take advantage of the weak period after one of them. Facing this kind of tactics, the practitioner might not survive; But if they did, an undying hatred would go towards the attacker!