I had a game with the gaf stack some days ago in Hanamura where the two randoms went dps and I got tilted by the end of the game because both of them never focused on the mercy, even when she was in the middle of the fucking point.
Usually it's a bad experience when the randoms instalock dps, especially when it's not their main role but they try to take advantage of a big stack to train their dps.
Yea, I was with Batman and Owzers the other night and I think the two kids playing DPS were doing so bad at killing anything, it tilted Batman much quicker than expected. The one guy who was a Genji used his Ult during our Zarya Ult and killed no one and we find out he was lagging. What luck. Then they switched off to Soldier and Genji and barely killed anyone. That was bad. They were nice kids but played horribly.