Why am I banned from playing the game instead of just chat restricted?

First time penalized, told a toxic teemo "kys" in postgame lobby. I'm not proud of what I did. I try very hard to restrict my contact with league chat because it's always just so toxic and pointless. I have my all chat disabled 99.9% of the time and I manually mute my teammates as often as I can remember to. I've posted on the reddit asking why I can't just disable my chat entirely - I don't see why it's there. Pings can communicate more than enough imo. I also don't know why I can't skip the postgame lobby, or permanently disable the postgame lobby chat. It's 99% toxic, unless it's both teams saying gg or nothing at all. Please riot - completely disable my chat box - fine that's fair, (and what I've wanted for ages). But a 14 day ban for a first timer chat offense?
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