Remake is a little too punishing
While the remake option is nice for when someone does legitimately leave, there are times where someone has minor issues connecting, and no this is not a 'oh check your internet before queing' issue or a 'fix your client' issue. There needs to be a tweak made with someone who is actively trying to rejoin the game.
It could be as simple as the remake vote still occurs at the early point but must be confirmed 2 minutes later. 5 minutes being ample time to rejoin a game.
The other change that needs to be made is for someone who is trying to get through a 5 game leaverbuster (deserved or not) shouldn't be forced to go through that wait time after a remade game. there is nothing quite so frustrating as sitting through a 5-20 minute wait, another 2-5 for game que, the up to 5 minutes of pick/ban only to have the game remade because a teammate or opponent doesn't connect, then have to repeat that entire process.