I just had a lobby where the mage dc’ed (prolly alt f4’ed) and he eventually got kicked out of the lobby and it counted as a 0-6 for him (he didn’t win a single round until then though) with the resulting 4-2 for every other dps and 3-3 for the healer. The mage got -60 instead of -150.
https://www.twitch.tv/tygalways/clip/ProductiveClumsyCamelTriHard-PnuRoiYTq0hSI5Kl
Are you asking if blizzard did a pvp change? When in doubt, take it as a no.
Wow! Thats nice!
I was plenty of times in lobbys where this boost buying warrior left, so i got literally nothing.
Now he is welcomed to leave my lobbies.
I even had a guy quitting on 2nd round with ‘zero’ penalty 
Watching Trille try to play everything just looks so buggy
probably yet another bug