Whatever all of this is, it isn't a debate about free speech. Accent shutting off Meyer's microphone violates free speech no more than your professor cutting you off in class. Just as a classroom discussion proceeds according to a protocol set by the teacher of hand-raising and turn-waiting, so too does a speech at an Accent-sponsored event follow a protocol set by the university: a protocol that stipulates, among other things, that questioners approach the microphone orderly, that they wait their turn to speak and that when and if they speak, they do so calmly and without profanity.
Meyer, as we know, broke every one of these rules, and for that reason Accent shut off his microphone and asked him to leave. This does not violate Meyer's God-given right to speak, but rather revokes the right that Accent had, for the moment, given him.