So, they continued in the parking lot?
I expect that there will be a law suit and that it will be very interesting.
Looking at the crowd they had a huge turn out of trans activists. This event was 'allowed' to happen, in my opinion, to shut it down. Because if you cannot describe a male accurately - then you are never going to be able to hold an event discussing male athletes in female sports. It was never going to get started, and sadly, it did not. This is going to be the case I think for a growing % of events in the future.
That taking a booking and then either cancelling it at the last minute or preventing it from occurring due to 'official' guideline infringements is an effective means to disrupt these events.