You know I just had this realization that Kakashi acting Like Naruto just ripped of Sasukes Lion Barrage, not being impressed is not nonly double standard bias towards Sasuke but also INCREDIBLY HYPOCRITICAL, coming from the mouth of the "copy ninja". Mimicking the moves of others IS HIS MOTIF so who's he to to judge? Especially when Sasuke took Lion Barrage fro watching Rock Lee
And the fact too Naruto being able to come up with the Naruto Uzumaki Barrage with what he had in his arsenal is a better feat than Sasuke having the Sharingan to help him copy the start of the Hidden Lotus. It's just one of those things where I feel Kakashi favors geniuses over those who work hard to become stronger, due to his elitist attitude initially as a kid, even if it got worse when his dad died.
Agreed kakashi is the reason for a lot of the problem with Sasuke save danzo.
He just assumed Sasuke was like him, but Sasuke wasn't driven by anger and fear alone... he was also driven by jealousy, not just of Itachi, but anyone stronger than him, including Naruto since he always saw him as the loser, unable to change or grow, and his jealousy toward Itachi only got worse when Itachi had no interest in him at the time they met again, given his deep cover in the Akatsuki, and Sasuke not having the truth of the Uchiha clan and expanding his horizons beyond that, even if he was a kitten to torture him with Tsukuyomi like he did.