The lack of surrenders from the advantaged team in a 4v5 is very telling.
About just how little people now care about the actual gameplay, rather than just the results.
A 4v5 isn't exactly a fun match, it's pretty much always a 1 sided stomp, but you never see the winning team surrender. It's always the team which has lost a player.
The disadvantaged team, has pretty much already lost all of their enjoyment in the game, because of how unlikely it is that they'd win the game. While the advantaged team wouldn't dare to surrender, because they get a free win and get to roll over the enemy team.