In reply to Mike Hutton:
I think fair go to the team retreating. Assuming you began the route with the second still on it (and failing) then you have to accept the consequences of gang banging the route! Lowering then abbing for the gear is totally acceptable, not their fault imho if you were too impatient to wait.
However, abbing off out of lazyness, when not necessary, and not warning others, is poor. I'll sometimes abseil myself if it saves time, so I can pack more routes in, but consideration for others should always come first.