Why Did this Deserve a Chat Restriction

A kid called me a retard in game but I get punished. Sure, I probably talked to much, but nothing I said was remotely worthy of receiving any punishment. The current system is just encouraging me to mute all every game cause as soon as you type anything you get punished. Like cmon Riot. After 1 game, with 0 cussing on my part. Game 1 Melàncholy: inv? Melàncholy: muted Melàncholy: trade back plz Melàncholy: ^ Melàncholy: you cant run down mid Melàncholy: youll get to our turret Melàncholy: then die Melàncholy: its more like a walk Melàncholy: down mid Melàncholy: thought we were backing... Melàncholy: this team Melàncholy: 5 bot Melàncholy: cant get a turret Melàncholy: just ff Melàncholy: its a 3v7 Melàncholy: no solo laners Melàncholy: 10/10 tele Melàncholy: enjoy your ban Melàncholy: for using r word Melàncholy: plz stop trolling and ff Melàncholy: let me move to next game Melàncholy: explains why youre trash Melàncholy: gold is stressful too Melàncholy: golf* Melàncholy: sorry i trypo Melàncholy: its like a bunch of 4 year olds Melàncholy: this is what happens on weekends i guess Melàncholy: how am i triggered Melàncholy: youre the one breaking the summoners code Melàncholy: how am i toxic? Melàncholy: ? Melàncholy: plz explain Melàncholy: you're* Melàncholy: why would you setup a 3 8 Melàncholy: name a single jungler who camps losing lanes