Punished for technical problem

I was playing a ranked game a bit ago and suddenly had "attempting to reconnect" pop up on my screen. I waited, but after a while and nothing changing I disconnected from the game and tried to reconnect from the client. Nothing. So I took it a step further and quit the client (on a mac) and tried reopening it to see if that worked. Problem is, the launcher wouldn't even open. After a couple tries I finally gave in and reset my computer. Now the launcher finally opened and I was able to reconnect to my game, of which I played the remainder without any difficulty.

When the game was over, I was notified that because of my disconnecting and AFK behavior I have been placed in a lower priority queue for 5 matchmade games. I have never had disciplinary action taken against me and do not feel I deserve to be punished for a fluke in my system. Is there a way to have this appealed?