I do find it to be a curious coincidence that "belief" in aliens visiting earth shares so many characteristics with devout religious belief. Just replace OP's references to aliens with references to the deity of choice and you'll get the idea.
Granted, I only interacted with a small sample of patients during my stay - only a few dozen. But the staff certainly gave the impression this was business as usual for them. I had no idea until I was face to face with it. There really is no substitute for being protected by a metal shell and protective airbags.
This sort of thing might arguably be useful, but only with local data processing.
That's not to say I feel any sympathy to the target - who by all counts has done a fair bit of damage. But this sort of hacktivism / vigilantism simply isn't helpful. There's a high likelihood that one or more nation states / law enforcement agencies may have had active operations directed against this threat actor derailed by such activity.
tl;dr - If you're going to conduct such activities, practice proper OPSEC. And don't let your desire for attention / recognition take priority over staying on the right side of the law.