is it realy that different from o the enemy got a lucky combo proc first round to cc one of my nin, or a lucky crit to kill the nin who was going to start my combo? both of those can lead to loses too.

or dodging part way thru a combo with iruka/itachi/sakura ect

or not dodging a mystery with tobi or an auto attack with konan

they all * equaly and their r plenty of ways luck can effect u positively or negatively