They are high expectations but not stupid.
I have high expectations, I admit. But that is to be expected of a character who was my second favorite character. I wouldn't if I didn't care about the character.
And they are not too high because even though I disliked what I mentioned above, he is still my third favorite character. It is not like I don't care about him anymore. It is just that I believe it could've been better.
I don't deny he was impressive, problem is that he was previously portrayed as someone who can deal with any situation on his own. Well, until it was shown numerous times that he can't. It was not a surprise. But, obviously, knowing that there were things above his level was one thing, it being confirmed was another thing.
And I agree, the more character appears, more likely it is new things will be revealed about him. But I would have prefered if something else was revealed such as his long named Jutsu and not long Jutsu naming of those Jutsu.