You are describing a jerk. The process to determine if people want a speedrun or not is extremely complicated, so I made a macro to help out some of the filthy casuals who stuggle with these complex rotations.
Speed Run Macro:
/p Speed run?
If the healer and 1 DPS says "yes" or some variation of that, you can go ahead and pull multiple groups.
If the healer says "no" or some variation of that, no speed run for joo.
