Guy doesn't take smite because he went to the bathroom in ranked, but then his whole team flames him

Last night I was in a game and my jg didn't take smite because he went to the bathroom after he locked in Nocturne. He must have played Adc last game because his summoner spells were . He ended up being under leveled for the whole game BUT he apologized immediately and offered to afk so we could remake. Instead of thanking him my whole team flamed him non stop and he ended up staying because they flamed. So who was the troll here? Who ruined the game? Personally I don't know the answer but I was wondering what you guys think. We were actually ahead early and we maintained a lead for a while but we kept on getting picked off.