The speaker was using a rhetorical technique to engage the audience, she interrupted the presentation to make petty comments in response. Everyone knows rhetorical questions and devices are just set ups to make a point, everyone in attendance knew the point the presenter was trying to make, and she chose to disrupt the presentation by being purposefully obtuse and difficult about it. It was all in bad faith and all triggered by her hatred of the sort of topics being discussed at the event. It is disrespectful micromanaging to the fullest extent for a board member to show up to something like this and act this way. Boards should guide and advise diatricts not show up to functions and derail them with petty grievances.