Yep. It makes good sense to have one person concentrate fire on the boss, and one or two others to clear the room of tangos. Otherwise, it takes forever! Kill count won't work, and shouldn't. But measuring inactivity and booting someone to orbit if they stand still longer than 90 seconds makes sense. Just like in some games, when your character taps their foot or makes comments about getting impatient, it should simply boot you to orbit for inactivity. You can stop and go into your menu and finish making gear changes, using ammo synths etc in less than 30-60 seconds.