You have an atrocious way of dealing with AFK in ranked matches can we raise the penalty a bit?

I recently had match today and yesterday where i got 2 AFK's ina row when my team had significant lead and suddenly two players at the same time D/C with no explanation before hand , i feel like its kids who should be sleeping have their parents come and turn off the wifi or some shit but why is their problem my problem ???? if your going to queue for ranked u should be damn sure to know you have the time to finish a match, ranked is more serious than normal's and their should be a higher penalty for these kind of situations in ranked play. Its fucking bullshit.