Okay so there’s 10 seconds left and the sentry health for both teams are 50-50. I rush in with Phoebe, phasegate and pull my ult on their sentry. Now the health is down to 46-50. Game ends and my team wins right? WRONG. Other team wins because their “player score” is higher. I thought the “Objective” of this mode was to attack the enemy sentry. Therefore, it should make sense that whoever has the most sentry health WINS. This can make for some exiting endgame plays and give an otherwise losing team a real chance at victory. Why is incursion setup the way it currently is? It sucks.
The damage you did occurred after the match expired, most likely. The score continues to track for a few seconds, which leads to weird results like that.