"Jane" has some current thoughts related to this stuff.
Poetry certainly provides food for thought. What a criticism along the lines I'm mulling over here would do, though, is investigate & evaluate the poem as food-source rather than meal : the poem as many-sided living something. As evocative, resonant art-action-work.
Aristotle, according to RS Crane et al. anyway, offers some neglected tools for doing that. Neglected in part because of the critical assumptions (blinders) he outlines in the chapter I just quoted.