I doubt if this was their reason for removing it,
however my reason for removing it would be it's basically softcore porn but also Jews guilt tripping the white goy boys.
This was my opinion of it as a middle schooler reading it and it is still my opinion now, the only difference is I'm now creeped out by the fact a smut author wrote it. At least when I thought she wrote it, it felt really sexual, now it just seems messed up.
Why *they* removed it though? I have no idea. Maybe it made kids too horny.