In one of my games last night as Reaper (in comp) there was a moment where they wiped our team apart from me and our Mercy (who were out of sight halfway around to a flank) and with barely 10m to go for the Payload, managed to drop in on them as they were teabagging atop the cart and wipe the whole team, ult was only at 30% when I dropped in but it hit 100% after about 2 seconds of point-blanking people... (We still lost sadly as they had plenty of time left to regroup and win a team fight)...
Our second match on Horizon I managed to get nearly 3 ults in one extended teamfight trying to take their 2nd point... 3 ults!
How do you get 3 ults without having won the fight already? Surely the damage needed to gain so much ult charge is also enough to take out their team? Impressive!