Cancel competitive matches when someone leaves the game

I've been in numerous games this competitive season where someone in my team leaves and it's a 5v6, which isn't fair for anybody, especially my team. All Blizzard talks about is fairness and balancing but where it really counts, it's not fair. I know they had this feature the last competitive seasons and I have no idea why they took it out. They also do have it this season, but it has to be at the very start of the match. Please put it back in, I just played a game where my Ana left and we were winning 3-1 and then we lost 3-4. Please Blizzard, this is very annoying for me and my friends that play. I'm sure I'm not the only here who thinks the same thing.