Hero gauntlet match cancelled. RANT

I was playing a match of Hero Gauntlet in arcade and there was me and 3 other people. The match went on for 5 minutes.

Someone left and the match cancelled

Why do you let the system cancel matches that are already in progress when someone leaves? Just let the match play out

I think it is a bug. Both Hero Gauntlet and Mirrored Deathmatch end after less than 7 players are in a lobby. The backfill is also bugged as you cannot join a match in progress either.

I indeed noticed it on 8 player gauntlet
But this was on 4 player