The examples you were given are from the manga. Sasuke explains this when they first meet Zabuza, if you have the chapters just pull them up. Kakashi using lotus was (I hope) a confirmation that Kakashi can open at least the first gate. If it isn't, the anime guys are taking even more liberties than last season.
Originally Posted by Dakine Guy75
^2:the grey area of jutsu will remain in the grey area until Naruto is put into the position where it has to be explained.
♥ of the cards!
No matter the genius, they all fall to mediocrity in front of the Uchiha!