I would say that if being part of a bombing campaign isn't an impediment to becoming a Distinguished Professor at UIC, then being part of a bombing campaign isn't enough to get him disinvited from StrangeLoop either, however many astonished tweets might have greeted his appearance on the program: becuase, in that case, it would have been easy for the organizers to separate his political thought from his educational thought. Of course that's speculation on my part.