Your second opinion is WRONG. Kakashi just said that all his space time abilities are one technique.1 there's no proof that it was crushed he was just stuck under the rock
2 kanji is the left sides technique intangible is the right side ( like tysukyomi and amartseu)
3 he doesn't use fire ball Hutus because he is wearing a mask how will he use it if it hits him in the face?
Your a fodder and your info is shite please try again
You must be registered for see links