Why are poems often not allowed in college entrance examination compositions?

Because of the composition of the college entrance examination, the marking teacher will write a composition in an average of half a minute, while poetry, because of its unique artistic form, needs meaning beyond words, in other words, it takes too much time and natural teachers are unwilling to change it. Moreover, a good poem can't be accepted by a group of people. There are many controversial poets in the history of China. As an ordinary high school student, it is an extravagant hope to let the teacher calm down and correct your poems, and then meet a teacher with a unique vision.