Difference Between AFK and Bad Servers

I very rarely quit out of a game or "rage quit." Not saying I never done it but you probably be able to count the number of times I've done it in League of Legends with one hand. Was playing rank this morning and was stuck in the loading screen and never switched over to the game. After I restart the client and went into the game my screen was frozen. No one was moving from where they originally were in game when I entered and my character would not move, despite it making the sound effects as if I were moving (character voices when you move). After trying to reconnect several times and getting the same result I had no choice but to AFK. Then I got penalize for it when I logged back in and had to wait 5 mins before starting a game for 5 different times.

Why is there no system to prevent this? I understand they can't fix lag on servers on specific games however they need to have a report system that you cannot connect due to lag in order to prevent this.