Corpsey
bandz ahoy
Fact is most of the poets who put structure in the background do so because they're not technically able enough to be more formal, and then this lack of structure may itself be foregrounded ending in pure sloppiness
There is joy in pattern and pattern needn't involve full end rhyme; there are myriad ways to create sound correspondences...but they do require skill.
This is what Eliot said about free verse.
The man you've posted off YouTube hasn't got the requisite skill to pull off the patterns without using redundant words, tying himself in convoluted knots, etc. Which isn't necessarily even a knock because very few people (as far as I'm aware) do have that skill or ever did.
Yeats and Larkin are two that spring to mind as being able to sustain whole, grammatically lucid, sentences across the breadth of long, rhymed stanzas.