but the reality is that they're trying to improve on something that didn't need to be improved upon.
And here we stumble upon the first major issue of the boards. This statement right here is 100% opinion. You see the situation in a very specific way, one that you cannot deny is biased. Meanwhile you criticize something without knowing the whole story.
If they were truly interested in listening to our feedback they'd scrap the whole thing and start over.
Now why would they do that? That's not listening to feedback, they already listen, they just don't heed the naysayers. The last time they did that... well... 
This isn't about them listening to anyone, or trying to please anyone. This is Riot doing what it thinks is best in order to improve it's game. Whether anyone agrees with it or not, they will do what they think is best. And until a forum poster can come out and claim to have more years of experience in not only coding games, but in crafting and balancing characters for use in a pvp style game. Then I see no reason for them to listen to the posters on here for advice on balancing and improving their own game. I mean they are the game makers, they've been at this for quite a while, they aren't perfect, but they have the experience that we should have some faith in them.