Leave busted activated because FIRE

So i was playing a casual urf game with a few friends on mine, and suddenly the fire alarm rang so I had to evacuate the building since I do not want to end up all burnt like . When I returned, the game was still in progress yet I had been dced due to inactivity, which was perfectly normal. AS any reasonabel person would, I rejoined and we eventually won the game. However, upon leaving the game and entering the end game screen, I found myself a victim of the leave buster system and is now LP queued for the next five games. Noting that I have not left a game in the past years, I find this punishment not only discouraging, heartbreaking, but also absolutely unjust.