So you can’t make the assumption that their rav is okay with it, just as your disputants cannot make the claim that their rav disapproved.
And my point was? Exactly that. I was being rhetorical.
That being said, as Jews (even putting aside all the logical reasons demonstrating these tzadikim were correct in their actions) we have an obligation of being dan lkaf zchus. So if we don’t know otherwise, we ought to presume they did so with the haskama of their rav.