Different people have different opinions. and from what ive seen most people have valid reasons for disliking the changes Riot has made. So now its up to Riot to either make changes so that the community is happy, or leave it because Riot feels its a better improvement!
Personally for me, i rarely play Fiora, but from the things ive seen people complain about its valid! one thing ive seen people complain about is when they drastically change a skin with little to no communication with the community on their opinion especally since we are/already have bought the skin. and since they dont do refunds anymore if we dont like it we cant do anything about it!
With the HUD i feel it will take a while to get use to, i personally dont like it, but one thing i cannt stand is the fact that the Ping button on the MiniMap is gone. that helped a lot when i pinged, and now i have to either bind it to a key, or a button on my mouse. when it was perfectly fine right next to the minimap!