I'm sorry, but my gut reaction is that is hilarious. I'd never do it myself bc I like winning, but if it happened to me I'd be frustrated then laugh. Maybe it's me but I love bronze. Was place in it S3 when I first started ranked and this season when I did placements. The climb from bronze to silver is so much more fun than silver to gold. People get super defensive about being good and deserving gold in s1, but in bronze you can literally play anything if you're good at it and have a chance of winning. No joke for a little while I just asked the team what role they wanted me to play and then picked a champ I hadn't played or didn't have a win with because I wanted to get more x/124 wins for my league stat. I was at least 50% win rate while doing it too. (Sadly although I love Cho'gath and Amumu I apparently can't play them. Terrible win rates for both, but a 60-70% win ratio with the champ I play most leaves a bunch of room to play fun stuff in bronze and still climb out)
tldr; don't sweat it. 4 people took a loss and have to make that up at some point, your punishment is that you get to play against weaker players for a bit while you climb out of a division that is below your skill (if it actually is) and that means you can play fun champs instead of just what you're the best at for every single game.