Nexus Siege

I've played 11 games of nexus siege and I was liking it but I probably won't play another match of it after the last one. My team was on the attacking team and at the start of the game 1 of our members leaves at like 2mins and 30 secs into the game. Now we are 4v5 and we can't take their nexus before 20 mins. I thought ok maybe we just can't ff during the first phase of the game only to find even after switching we have to wait out another 7-8 mins of not defending just so we could get out of the game faster.

Both Team said it was not fun, that should be a fairly good reason to at least allow surrendering at the start of the 2nd phase if their are 1 or more players not connected in rotating game mode that is supposed to be fun. we already have the remake feature in this game so there shouldnt be that much of a problem for a team that is 4v5 best case to not be able to ff at the start of phase 2.