Board Thread:Episode Discussions/@comment-25787298-20160519120227/@comment-1512913-20160520210539

No, they are doing what Kishimoto didn't do, filling the gaps. If it makes sense to you or not is irrelevant, because no explanation was offered by Kishimoto in the first place, so anything goes. If they say Sakura's grandmother is a cow, we list it as true, unless Kishimoto comes out and says that Sakura's grandma isn't a cow.