I also don't know why anyone would even consider going on camera with him without having a camera of their own that they control.

Like most people, they probably remember old Jon, Stewart, and do not realize that they are dealing with new Jon Stewart. And assume he's going to give them a fair shake.

4 years back there was a tipping point, both him and John Oliver, stopped putting in effort, and stared living off their past reputations, while spreading lies. It was like a switch was flipped, and they went full propaganda without hesitation.