@Riot, my personal experience with the chat restriction system
In the 10 or so games I have played since my chat restrictions have been lifted, I have received not only no reports but have been honored for team working in at least half of those games.
Why is this? Because I am a leader in games. I use pings a lot and I chat to the team a lot, I call plays, I direct traffic in the mid game, because I'm a jungler, so I don't need to be controlling my champion while I kill camps, so it's easy for me to divert my attention to these other critical tasks. I have made no particular effort to be less toxic and yet all of a sudden, when I have all the words I need to properly express what I need to say, all of a sudden I can do so in a way that is not instantly interpreted as toxic and inflammatory by my team.
When I only have a tweet's worth of information to type every 20 minutes and my top laner is getting camped, I can't actually tell them what my plan is to deal with it, all I can respond to their constant pings and increasingly urgent requests to gank with is "Play safe, stop dying" Because I literally don't have the space to say what I want to say which is,
"I can't gank right now, I'm too low on hp and I don't have any damage to help" "let me back to base to buy a longsword, then I'm going to hit level 6 as I clear my red, I'll ping you when I'm 5 seconds out" "When I do that, bait them in and we'll get the kill. I'll play like I've gone away and when they TP back to clean you up, we'll ambush again"
That right there is my entire chat allotment as a chat restricted player, but I also direct the level 1 plays if my team is up for it and maybe a want a smiteless gromp or whatever.
What's my point?
My point is, Chat restriction is counter productive to the goal of making people less toxic. It only frustrates the player more making them more likely to simply use their small amount of chat allowance to rage at their team mates. And I can certainly speak from experience here as I have been chat restricted for basically as long as I can remember. It's only these past few days after those chat restrictions have been lifted when I've been able to properly communicate with my team and actually achieve some positive results through that communication. And yeah, doesn't mean I win, but when I lose and I did everything I could and my team tried to rally but we got beat anyway, then I don't get angry and toxic and ragey from the loss. I might get a tad salty, but who doesn't.
Anyways, this is just my experience with chat restriction vs no longer being chat restricted for you to consider.