Well, to quote the quick and dirty SWTOR player type: "Spacebar, please!" In some cases only "Spacebar!" or "Skip!" Sometimes a little more unfriendly. I don't know why they didn't do it like that. If the whole team wants to skip, skip. If one doesn't want to, everybody has to watch. Maybe with a little message like "2/3 fireteam members want skip. For skipping, please press up, up, down, down, left, right, left, right, a, b.