User blog comment:Skeith9/Heroic Spirits Speculation/@comment-24982278-20140525073101/@comment-24762556-20140525193533

F/SF is noncanon to me because

1) It is explained to be in an alternate universe, which makes it as canon to the canon timeline as much as Prisma Ilya is. Fate/zero is an event confirmed by Nasu to have occured in F/SN, Prisma Ilya, AND EVEN F/SF, which by definition makes it canon.

2) It is a friggin April Fools joke.

3) It is already discontinued, any spinoff that doesn't continue to its proper ending should be considered noncanon by default.

And I am not talking about his justifications to how his heroes are chosen, I am talking about the depictions of the heroes themselves. Enkidu bears almost no resemblance to his mythological origin, not to mention for a friggin' Lancer the guy doesn't even use a polearm for flip sake.

I don't care if Narita breaks the rules of the original Nasuverse mechanics, because seriously even Nasu himself changes his rules around like every other Thursday. The problem is the result of his bastardization of both the heroes' own source materials and Nasuverse rules in incredibly self-convenient manners results in a bad plot.(ie. his Hassan being "the strongest Hassan who can do everything every other Hassans can and is feared by them" basically screams Mary Sue more than anything.)