XD Exaar.
Honestly though, the reason people think it's a fodder jutsu is because it has yet to actually end anyone. I wouldn't call it a fodder jutsu though as it is ranked forbidden. It's just that toward the end of the war it was being used against top level/god tier shinobi who basically shrug it off.
But in the right situation it still had its advantages, like Kaguya's ice dimension. Sasuke melted right through it freeing himself and Naruto. So....
Also Dantee you exaggerated some of your examples. It didn't take down Hachibi. Bee actually used Amateratsu as a means to escape the village. All Sasuke burned was a tenticle. True on the Pain hound. In this case Amateratsu was the best counter for its sermingly unending multiplying ability so points on that.