If you are upset about them using a consistent naming convention for their videos then you are way too sensitive. They called it a panel, but they also said they would be LARPing, and within a few minutes of the start of their presentation it was pretty clear what they were doing. If you didn’t like it you could have turned it off and waited for the notes. Watching the entire presentation and not enjoying it is on you. That’s a ridiculous misuse of your own time, but it was your own choice to do so.