This is much funnier if you've ever actually been to one of these panels. I once heard someone ask Nathan Fillion "who made the pies for the movie 'Waitress'?" In case you're wondering the answer was "I don't know, a catering company I guess."
Yes. This is basically these two mocking the audience, (most of whom no doubt had questions which were just as inane if not more so) and getting the objects of their mockery to love them for it.
I found this hysterical. I spent the first half of the video wondering if Steward Recognized Spiner (up until he called him an idiot) - and my second half just enjoying the silliness.