Interesting point. Almost anyone can learn the 'forms' of poetry, some have a natural skill/talent in using it well (others have to sweat at it), but I reckon there is a third element which is the poet's personal journey up to the point they wrote the poem and the inner processing required for them to write it - ie: an element that cannot be learned as a form, and goes beyond gift/talent/hard-work.
And welcome to DUP.
Here in America there was a show back in the late 80 early 90's called 'The Wonder Years'. Not sure if they showed it in other countries ( this was waaaay before extended cable, Netflix or Hulu ). Episode entitled CODA in which the star of the show, Kevin Arnold, was talking piano lessons, but didn't feel as technically good as another student, Ronald. The teacher attempted to explain there was a difference in technicality and instinct, which she felt Kevin had if he would apply himself more.
Kevin ends up dropping out for fear of embarrassing himself at the recital. He lives to regret that decision, and the episode ends with him playing Canon in D. Each family member stops what they are doing to listen to him. This clip does not show the recital, but parents and guests were fidgeting and feigning interest while listening to Ronald's mechanical style, while Kevin's family, who had previously, and for the most part ( with the exception of his mother ) mocked the noise he was banging out during practice, now willingly stopped and listened to his natural ability to connect with music beyond the mechanics of reading sheet music.
It also revealed to Kevin that he could connect naturally if he would apply himself.
It's something that can't be explained; only felt when experienced. https://www.youtube.com/watch?v=36cDEfpatRQ
That, to me, is poetry.