Maintenance during GAC

Why have the game accessible during maintenance? I had 3 resets and 2 of them happened after GAC matches. I went from having a genuine chance at winning to not even being close. I normally don't have a problem at little inconveniences like this but it was actually disheartening this time because I'm trying to break into Kyber from Aurodium 1 and this badly hurt any chance of that happening this season.