Why Increasing Punishment for Afks Won't Solve Anything
It's a simple reason. Most afkers don't do it on purpose. There are very few people that truly afk on purpose and those people are usually banned very quickly. However, most afks come from the occasional internet death or power outage. Riot really can't do anything about that, and I doubt the person affected is happy about it either. If they increased the punishment, it would hurt the majority of afkers who are already gloomy about losing a game because of a power outage or something more than it would hurt the minority of ragers.