Waiting out the AFK penalty in bot games

So I was trying to play some bot games with my girlfriend who's account is currently level 6, mine is level 30 and been played actively for nearly 4 years, so I decided we would play some Co-op vs AI games, namely some beginner bots on Summoner's Rift so she wouldn't be overwhelmed.

In the loading screen I notice that our Yasuo who is going top is a mastery 5 diamond ranking Yasuo, who even has Yasuo's name in his Summoner name, which I thought was a bit odd since here is a player with an obvious amount of skill playing almost the lowest ranking bot game-type in the game, so I made mention of it when we loaded in where he told me that he had gone AFK in multiple games and was supposed to wait for 20 minutes before every queue as punishment and to "just hurry up and win". What followed was the most unfun 15 minute stompfest I have ever witnessed, with the Yasuo soloing every bot in he game from 8 minutes on and being on the enemy nexus by the time bot lane reached an inhib, with 3 pentas under his belt.

I was trying to learn how to jungle Ekko, my girlfriend is completely lost with this week's free rotation, and was trying to figure out Leona. I don't understand why someone can AFK multiple games in ranked/normals and then wait out their punishment rushing through bot games then watching youtube for the 20 minutes in between the matches just to hop right back into normals and continue on like nothing happened.

So as a suggestion, for once in your life Riot acknowledge the good things DotA has done, add in a low priority queue. The experience is miserable, sure, but it does its job, making all the toxic players be horrible to each other encouraging them to change and it feels like an actual punishment for doing something you shouldn't in the game. I ended up in low priority once, and I've worked my butt off ever since to never have to experience it again. Alternatively make them wait the time in the queue type they are being punished for if the punishment is not going to be severe enough for them to not just shrug it off.