Yeah, I don't see why space-barring through is a problem.
Do we have any real numbers on how many people are actually listening to the dialog and how many are just hitting space?
In my experience, most of the people in the Flashpoints are actually paying attention. I base this on the fact that I've had discussions in chat about the decisions people make.
And if someone wants to space through, so what? That just means that they have to sit around and wait for the rest of us to watch the video, anyway.
Anyway, if they left all the existing Flashpoints as they are and then added new ones that are on a par with Esseles, I would be very happy.