Given that it's still a few months before the actual event, I don't think it's too late for Beck to change his plans, cancel some of the planned events and so on, and take this event back to thew dirtbag event that the poll shows the majority of respondents to date would like to see.
It must suck to find out that you are organizing something that the people you are organizing it for, don't apparently want. There seeems to be a moral there about consulting first.