Consider the first two lines. Although they are one sentence they are split into two thoughts.
Also consider the tension created by the author putting a line break after "undress", creating a (gentle) joke/misdirection that's revealed in the next line.
You could apply this reduction to any artform. Your favorite song is "randomly" in 4/4, or "randomly" in D minor, or is "randomly" about someone called Suzanne, or "randomly" features a high note in the middle of the chorus.
Finally, consider a punnet square of
GOOD ART | BAD ART
I LIKE IT
I DONT LIKE IT
it's pretty easy to fill in if I was to show you pieces of art
it's really hard to fill in if you have to define each of the four items before you fill it in, and ask me to fill it in on your behalf with these instructions.
So: what constitutes a good poem, and why doesn't this meet that criteria? What consists a poem you like and why doesn't this meet your criteria?
I ask because, you accuse it of "looking random" as a bad thing - should all good poems not "look random"? Might I ask you to consider that the look of a poem might not be it's only metric of worthiness - even if it's in the "bad art" and "I don't like it" section of the diagram above?
That was some great explanation, thank you! That really helps me see the poem differently. I don't think everything is random about songs, but songs are more obvious for me to understand why they are structured the way they are, where are poetry like this is a bit baffling, probably because I'm not a native speaker.
Iambic Pantemeter is the most common system in American poetry. However, I have forgotten what the hell the rhythm for that actually is so I don't know if this is that or not. I know it doesn't necessarily rhyme and tons of things written in that style are more like speeches or just normal writing.
The "Now is the winter of our discontent..." speech is Iambic pantemeter.