New suggestion:
If there's a draw, your remaining characters are retreated like in the Raids and you can use them again at the health they retreated with. So getting a draw with 5 guys remaining vs 1 of theirs, mean you can go back in and finish them off cause you clearly had the upper hand. BUT you lose the first time attack bonus.
Or if you draw with only 1 guy remaining you can use that character on a different team but at their health level.
Saying if you can't win in 5 minutes you don't deserve the win is a flawed idea, the game constantly changes with complex strategies and real life time is an immeasurable factor in "victory". If I think too long about my moves or somebody asks me a question while I'm in a match may drain the time I have to win. If those variables were different my team could've easily won. So it's not that if my team can't win in 5 minutes I don't deserve it, It may be that my team CAN win in 5 minutes but something else got in the way of giving me that chance to win. Which I understand is not the game's problem but it is our problem as players.
A very minor one.