Banned for playing a game i suppose

So i played a game with some friends we were joking around and ended up with some sensitive langauge according to another teamate which i explained wasnt a racist slurr it was just a joke between my friends. the text only bans me for saying the word "%%%%%%" as a black dude hasnt phased me for doing anything wrong. This slurr was at the start at the game and nobody seemd to be that bothered by it and we got out to a rough start losing bot and top and in the end lost. I think there was some salty teamate that just decided to report just for reporting and not actualy contribute to the community. im not sure if this ban will be removed but atleast address people being angry at the game resorting to reporting people on their team for just playing the game. (sorry for bad english)

Edit: I suppose i was mistaken about the ability to joke inside a game where jokes were already a part of the champion select. and if thats the case i understand my statement is not a good thing. when i played back 2 years about now the community wasnt too sensitive on these things, my bad.

Edit2: i suppose something said abot 1 min into the game will ban me for 2 weeks and have major impact on the other players since a joke is clearly toxicity -.-