Disconnecting Feature

I have been a fan of League of Legends for a very long time. But there are some points where I question the game mechanics and features. I have knowledge that the games usually last from thirty minutes to an hour or even longer. But what happens when one has to leave for something such as a family emergency or work or just them getting tired of playing a game that has taken too long to finish. So why is it when they leave they get warnings or get temporary bans? That is because RIOT has decided to make it to where the player HAS to finish a game. If this game were to allow some sort of a "time-out" or any way a player can disconnect from a game without having to risk a punishment, then I believe that it would make the players happy. I do not however know the answer to this question. But I feel that if you were to take away the feature of "Banning" then it would suppress the negativity. I am not saying that it will stop the players from disconnecting, and i am not saying that the players will hate this small solution. I am just saying, from personal experience that if I have to leave to do something important or leave because of the game taking too long to end, I don't want to feel punished or regret that I left, I just want to enjoy playing a game without feeling like i am stuck in a game once I enter.

If you read this whole description, thank you for your time and have a great day/night