Let's get one thing straight here, it takes more than a few AFK's for someone to get punished, as the system is trying to see if they are intentionally AFK-ing or not. But lets say that they AFK-ed after giving a few kills because of silly mistakes, then that is unlucky for you and it happens, nothing out of the ordinary.
But in my eyes, these are the two things I am thinking right now.
- You are salty because you demoted and are trying to find excuses (although it might be legit excuses, hence if Pant really AFK-ed because of mistakes) but just move on.
- It's low elo, anything from Iron IV - Platinum I/DIamond IV is what I consider low elo, if I can do it, so can you, I climbed from Iron IV (placements) to Platinum II with only 8 losses.
Overall message of the post, face it, life happens, stop complaining about losing and get good at the game.
Might be curious to what rank I am so, here's my new main for this season (used to be my smurf): https://na.op.gg/summoner/userName=LandyPG