Works fine in dota2, avoids forcing players to waste time running down mid until game is over and stops 1 player in your team from griefing the rest by voting no on surrender vote even though you got 2 leavers and 2 players who can't use voice chat.

Can't expect riot not to copy-paste the same mistakes over from LoL i guess.

inb4 "i won a 3v5 game once in silver rank, downvoted"

EDIT: "without punishment" = Everyone on the team still loses rank but no queue penalties etc.