Firstly, it's subjective which means you can't necessarily be taught it and then be graded accordingly. Secondly, it's something which comes with only practice. Cramming it in a set time period in a degree/course utterly fails to consider the individual. Also, none of it is formal or deterministic. Art history perhaps, but that's not art.
My grandfather did terribly in art at school and was graded as an utter failure and his teacher told him he was totally hopeless. A few years later, driven by this, he made an absolute fortune selling his work and has illustrated many well known books as well. He's now dead, but in his last will and testament there was "fuck you Mr Brickett", directed at his art teacher :-)