Most people refer to the bright maps as bright maps because the maps are bright. Whenever I'm on a bright map (lol dont go there silly!), people complain because the bright map is bright. Unfortunately, there aren't too many American servers and I can't just change the map with my magic powers. I'm sure if you fought someone who was reasonably good at the game, you'd have trouble keeping track simply because the 12 million suns are blinding you when you look anywhere but down.
As for not everyone agreeing with my opinion, I'll just turn that around and say not everyone agrees with your opinion. Where does that leave us? Back where we started, with unreasonably bright maps.