How is this punishment fair?

So I was recently given a 10-game chat restriction for being Toxic. I went Vayne jungle and my top and bot lane were pissed at me the entire match yelling at me throughout the game calling me a dumb-ass for going vayne jungle and for not ganking their lanes (as they were feeding). During the game I got invaded 4 times within the first 9 minutes and had 3 of my buffs stolen along with sides of my jungle. Over the game after constantly being blamed for losing us the game and feeding and not ganking their lanes, I made a single insult. I assume this insult is why I was restricted. I said "Janna is Autistic". Because the top and bot lane were in all chat telling them to report me for inting etc. Pre Game Lobby:

In Game: Bruenir: minor setbacks Bruenir: can someone ward that bush [All]Bruenir: yeah bitch (Lee Sin was invading and I caught him and pushed him out) [All]Bruenir: run Bruenir: damn Bruenir: burnt the flash Bruenir: lee invading again Bruenir: its gone Bruenir: im megafucked Bruenir: holy shit Bruenir: because i got 4 fucking buffs stolen and invading 4 times (Them asking why Im not ganking them. (Their Lanes are fed)) Bruenir: its not that im playing vayne jg Bruenir: but i wont press on the matter anymore because i will start flaming Bruenir: they are taking advantage of the fact that Im constantly being invaded Bruenir: that is not the problem [All]Bruenir: that is not what im saying [All]Bruenir: janna is autistic (I dont remember the exact context but they were spreading lies about my behavior) [All]Bruenir: no [All]Bruenir: I havent talked all game [All]Bruenir: They are crying that im not ganking bot Bruenir: rip my red? [All]Bruenir: no [All]Bruenir: im not Bruenir: lmfao ( The rest of the logs are them blaming me for them doing poorly in their lanes and Bruenir: you are 0/3 basically saying that I lost us the game) Bruenir: im not the one complaining Bruenir: i do Bruenir: we are possibly gonna lose Bruenir: im not lmfao Bruenir: you have 6 deaths combined botlane Bruenir: lmfao [All]Bruenir: I would just like to point out [All]Bruenir: It is my fault that they lost bot lane Bruenir: we can win this Bruenir: im dead Bruenir: we can Bruenir: so if i afk we win? (Saying we would've won if it was a 4v5. I had no intention of afking) Bruenir: but you said the reason we are losing is because i didnt gank Bruenir: because i havent been jungling Bruenir: ive been invaded all game Bruenir: ive been trying to farm Bruenir: its not Bruenir: you guys keep acting like im blaming the game
Bruenir: stop twisting my words
Bruenir: im saying i didnt help you fuckers because I have been behind all game and wouldve died ganking (Pent up from the entire match) (everyone jumped on me at this point blaming me.)

This is also the only game I got the chat restriction for. I don't understand how this one instance which IMO is not toxic at all besides 1 insult is taken as if its how I act every single match I play.

If you think I deserved it then I would love to know why.