There are too many plot holes. It shows Kakashi becoming a chuunin as a teenager, yet he apparently became a chuunin at age 6 after graduating the academy as age 5. Also Minato's face is in the mountain while Obito is alive (although it's known he was a jounin at Obito's death). Those are two blatant mistakes that clearly make this chapter not canon.
Also, Obito is not Tobi.