Why are games STILL being allowed to start with disconnected players?

I'm from the LAN server and I have no other idea where else to post this as it falls on deaf ears. In LAN, the situation is awful for some reason. Every 3rd game there is a disconnected player. My question is, how does a game like DoTA 2 have a proven system for when games start 4v5's, but Riot refuses to do anything about it? Why must we not only endure the torture of a 4v5, but sit there for 20 minutes until we can surrender? It is so frustrating to have to deal with this, I really hope Riot can finally listen and make some steps to fix this problem. Thank you.