Stadium has the worst matchmaking in the game, especially in the tank difference, which, in a 5 vs 5 like Stadium, has so match importance, plus you can’t switch to counter over-oppressive enemy heroes; therefore, the fate of the game is sealed most of the time right at the beginning.
So why don’t they give a surrender option, not to waste our time even more, especially now when the developers have set back to seven long rounds?
And there’s not the childish excuse that “it will be abused by troll players”, because those are ruining the matches anyway.