Yesterday I was practicing some 1v1s and two players intentionally left the game after about 10 mins of gameplay because they were losing.
I was extremely disappointed to learn that I had to actually still kill their commander because apparently leaving the game doesn't result in a surrender.
I would wish for this to be changed as soon as possible.
I know it is probably not that simple due to reconnection option but shouldn't it be easy to differentiate intentionally clicking "Leave Battle / Lobby" button than a player being disconnected?