ValorantForums.com is (sadly) not the official forums for Valorant, and thus not affiliated with riot in any way. However me being the best mod in the world will try to help you with your issue/problem! 😃
The penalization system is a system that's always going to be around in most (if not all) online games. Unfortunately people do "AFK" and/or "leave" games which is a big bummer and especially in Valorant where if a player leaves there is nobody going to replace that teammate (Like in Overwatch for example). Riot have (In my personal opinion!) improved a lot when it comes to afkers and leavers. They've introduced 1 hour que bans for players that afk/leave etc, because its unfair for the rest of the team and put the team at a major disadvantage (having one less person does impact!)
The afk and leavers ban is meant to deter people from doing just that "afk and leaving". The other intention of the system is to get players to think about whether they can "stay" in the game for the full duration or not.
With that said, the system is not 100% perfect and doesn't take into consideration that you crashed, or have major net connections. But the system does work and does have the effect they want. So just wait the hour que (I know its annoying)
I'm sorry for the essay, I just thought I'd explain my knowledge on the system. I do hope I have helped you. But if you need any more clarification or help please let me know and I'll be more than happy to help!