To be honest riot is like the uncle from far away that you see only during holydays and usually brings you a gift, which would be fine if only they didn't buy you a pa4 instead of a ps4 or something like that.
We wanted a better queue system: they gave us a new one that introduced new problems;
We asked them to nerf Zed's safety, they give him a small nerf on his damage;
We asked urf back, they gave us a different one.
Now I'm not here to complain, but really, they usually give us what they THINK we want instead of what we ACTUALLY want, even when we clearly state our desires. Mind you I love the new queue and loved both urfs, but really the zed nerf just goes to show that riot doesn't really give us what we ask for 90% of the times and instead throws something they think is better which still ends up disappointing us.
Like I said, I'm not complaining, jsut stating a fact: we asked them to do something about fiora, telling them that the problems were her passive damage and heal combined with her incredible mobility and safety which made tank fiora viable. They gave us a nerf on the cd of the one ability no one complained about (her e).
I will repeat that you are right, us players really complain a lot and often for the wrong reasons and/or in the wrong ways, but riot doesn't really give us what we ask for. I'm pretty sure we would see less complaints if riot actually listened to them and acted with them in mind, instead of doing what they think is right since, you know, if we get what we ask for it's our fault if it doesn't work out, not riot's.