Pingspike and no option to reconnect [Launcher]

So there I was, on Summoner's Rift, helping my Kog'Maw kill their Karthus, when suddenly my ping spiked. No big deal, this had happened many times before. I waited about a minute, then decided to just leave and rejoin the game.

Except when I got out of the game, it took me straight to the home screen. No option to reconnect. And now I'm probably going to get leavebusted for it. Pretty sure this is a bug, since i always have the option to reconnect.