It absolutely baffles me why Blizzard have not added backfill to Competitive. It seems they’d rather a team be left at a disadvantage than returning the game to its purported fair and balanced state by adding in a backfiller to replace a leaver.
Yes, there would need to be changes made to the current backfill system to allow it to better fit with the Competitive format, but surely adding a player to take the spot of a leaver and bringing the game back to being a fair and balanced 6v6 match is better than leaving a team to be at a massive disadvantage because of a leaver in what ends up no longer being a fair and balanced 6v6 match.