Why was this cut in the US?

The scenes that were cut out of this were pretty generic hentai-type sex scenes that don't add much to the plot, but I also don't know why they were so controversial. They're not to protect the "actress" since she's anime. If she literally looked the age of Natalie Portman in "The Professional" I might understand it, but aside from being a lot smaller than her hulking male partners, she looks like a curvy, big-breasted high school girl. 80 percent of males actually have had sex with a girl that age AT SOME POINT in their lives and 100 percent have fantasized about it. Moreover, the US porn industry makes XXX porn with REAL girls that look about this age, but just happen to be (barely) over 18.

Nor does this anime exactly GLAMORIZE sexual abuse. The hentai scenes might be a little much, but I don't think this is going to inspire anyone to go down to the local high school for sexy orphans to look for a particularly big-breasted girl with, uh, red eyes, so they can sexually abuse her and train her as an assassin. . .