AFK mechanics

So it's obvious AFK mechanics in League don't work. everyone knows that. For starters you simply lose a player and get no money gain, exp gain or anything. Dota 2 has so if you abandon you're banned from the game and the team get bonuses. If you dc you have a period of time to reconnect then the other players get to control your character and can have your cash and items. Seemingly perfect. League is still at nothing. So if someone leaves you have a huge 4 ability, 6 item and passive disadvantage as well as a huge amount of team gold. Just gone. Now if they're playing a role like jungle then it's a guaranteed loss because objectives such as baron and drake are essentially off limits without smite but to be honest it's guaranteed loss no matter who is afk because of the huge loss in team capabilities. The League afk system is totally broken. It will determine them as afk if they stand in base too long yes. But there is nothing beyond that. They get practically no punishment. There is no help given to the team and if the player buys items but still quits at the start of the game then they aren't allowed to remake. Why not?! It's so ridiculous to have your jungler rage quit within 5 minutes and have to play on for another 30 because you don't want to lose 20 L P. There is no reason there should not be an option to remake here. That is a full laning phase with only enemy jungle ganks which totally screw you over for the rest of the game anyway. It's guaranteed LP loss and it's always at the worst times like when on 95 lp and it's demoralising as F***;. Riot please stop doing this and letting it happen. Please stop making ranked such a waste of time and just fix it.