I feel like it has. I think the balancing that Riot has done in order to make champions geared towards one role has kinda ruined it a bit. All these champions that were broken or annoying are now being fixed and edited in a way that they fill a particular role, eliminating some of the diversity of champion picks that can be used with some kind of effectiveness in a given role like AP Mid or Bruiser Top or something like that.
Also, Dunkey was right about the ranking system being broken. Why exactly was I put in Bronze 3 after winning 5 of my 10 provisionals when I was S5 Silver? There are fresh level 30s getting into Silver 4 by winning 4 out of their 10 provisionals. Then, when they get there, they are just useless, completely useless. These are the people that I am sometimes left to somehow carry, but in reality I am carrying nothing. A 0/8/7 Yi is useless. It's a 4v5.
Not to mention the fact that there is no solution for people dcing from games. I feel like there should be some kind of policy regarding DC's. Yes, I do understand that it is near impossible to find a good fix for DC's, but I think there should be a rule of 1 Loss Prevented per month or something for a DC. A DCer can literally erase all of what you have been doing for the last 3 hours. It's crazy. I feel like players as individuals have wayyyyy too much power over whether or not a team will win. If someone won't group, someone DC's by choice, they MIGHT get banned. Meanwhile the other 4 players on their team lose LP, indicating that they are not ready to move up to the next Divsion/League when that is most likely not the case when they were winning the game.
This game really isn't enjoyable a lot of the time because of the players, not necessarily the game itself. I feel like Riot really fucked up with the recent buffs they applied to tanks. Skarner is broken, Darius is OP as hell, Garen is a very common ban, Fiora is OP, essentially, the meta is shifting WAYYYY too much because of these recent buffs for champions that are outside the meta to perhaps find a place.
Last of all, I agree that Dunkey has really promoted League of Legends and that he is not getting the credit that he deserves for his work. I don't really ever get flamed because I mute everybody as soon as I come into a game, (people are ridiculous at Silver Elo, one time I got flamed for 40 minutes by this Leona, I legit didn't mute her just to laugh at what she was saying as I went on a killing spree) but if people like Dunkey are who this game needs banned, then so be it. It's ridiculous though that someone can be banned for what they say. I feel like people should only be banned for what they do in a game, but really the only way Riot can get any sense of whether or not someone is trolling or flaming and deliberately not grouping with their teammates is by looking at the chat. Flaming is bannable because of the actions it implies, not because of the actual text that's being written. I mean, you can just mute people, it's pretty simple lol. I don't even read the chat during games. In my eyes, I haven't gotten flamed for a good 6 months. But yeah, that's my opinion on it.
AND YES, Dunkey should have been banned. He shouldn't get special treatment because it requires a history of flaming to be banned, not just one game where he flamed out a troller.