Ranked loss prevention

Wouldnt it be possible and beneficial for a loss prevention system to be put in place to prevent loss of LP when AFK players are in team, there could be a severe punishment for afkers and that would prevent people ragequitting also, just an idea but maybe drop AFKers to 0LP or even move them down a division or tier each time, NO EXCUSES even if they have connection issues they should not be ruining other peoples games by joining without a constant and reliable connection. tired of having 3+ 4vs5 games every day sometimes 3 vs 5 and once 2 vs 5 :P it is just annoying and avoidable by simple rules