List of grievances for League Balance
You know Riot doesn't know Gnar is an issue right now and think he isn't making top lane choked in pro play? They haven't adressed that Conqueror is balanced around tanks, loses to Grasp in lane and is out scaled by it? Bruiser junglers like Rhaast are still out of a keystone after half the season. Urgot still has no keystone nor itemization. How about the top 3 pro play mid laners (Ryze, Taliyah, and Galio) are all better versions of TF? How about Alistar not being nerfed for half the season despite being top tier since then (while a Master tier player I know laughs as they wanted to nerf Blitzcrank at the start of the season). How about the fact that lane swapping still hasn't been fixed and you just lane swap top and bot after the first side lane outer turret falls, which you can easily see in high elo games too. What about the fact that no one tries to solo kill in pro play? Or Faker literally getting stonewalled in lane by Malz and being unable to carry at worlds? What about Fleet Footwork negating every weakness of marksmen? The fact that anti-healing is still in the game? The fact that shields still have yet to be nerfed? How about modern tank design being terrible? Tenacity being useless because most CC is knockups? How about Xayah being broken for almost a year and not even getting her main issue fixed? How about Kai'Sa being high pick, ban, and winrate and not being fucking hotfixed. You wouldn't believe it, but Reverie is broken and Master+ is abusing it. Irelia is still overpowered and that's easy to explain with any research of Diamond+ stats. The jungle has an issue where camps take too long to respawn, some can be cleared to easily, catchup XP is still somewhat an issue, and camps give too much EXP early. Instead of making camps respawn faster while they give a bit less XP, they're making Rift Scuttle RNG and only changing the XP. Let's continue to ignore what consistent Challenger players like Silas and Tarzaned have said about this and do something completely different.
You can easily verify these most of these complaints with a simple google search into Diamond+ stats, while others would take more research. I can list all this off the top of my head while Riot doesn't mention nor address it, even going as far to deny that Gnar is choking top lane viability. Also, then they're buffing Kennen because top laners haven't had it bad enough.
I genuinely feel the people balancing the game don't pay enough attention to this game and what's really going on. I see no stats references, no justification for changes, and discussion of only vague ideas rather than targetting the issues in the game.