Why does HE have to be forced to spacebar through it if YOU do not want to hear/read it? Why not let people enjoy the game the way they want if it's new to them? It's not like the dialogues take hours.
The issue hear is ultimately difference in playstyle preference and everyone thinks that their way is the right way and everyone should conform to their way. This in it's very nature creates unnecessary conflict among players and needs to be addressed by Bioware.
I do think that if you're in a group majority should rule. If the majority want to space, everyone space, if the majority want to watch story, then watch story. It's unfair for 1 person to inconvenience 3 others (either by lengthening the flashpoint or by forcing them to space). I try to follow this when I play. Also don't be a jerk about it (either side).