They do?

Yes :(

I didn't know people hate it

I can't say I like or dislike it as I haven't read it. But from what I understand it's not canon, so I can see why people dislike it.

What is up with people caring about Cannon or not of course it's not that's like hating bleach for not being Cannon to Naruto of course it's not

Some of the best things occur outside of canon.

I have yet to watch/read Naruto. Personally I just prefer stuff that's canon.