TheygoMew wrote:
Hairy backs....
Bushy pubes
Bushy underarm hair
Hairy chest
These things do not constitute low grooming standards. They are a matter of personal taste. Some women like hairy men; some don't. Some men like to keep themselves hairy; some don't.
The true dealbreaker is: are the areas you mentioned kept smelling fresh and clean, or are they smelly?

TheygoMew wrote:
Pimply face
Sharp pointy teeth
It is grossly unfair to accuse someone with a pimply face or sharp pointy teeth of having "low grooming standards." Some people suffer from acne no matter what they do to combat it. Acne is
not a sign of poor hygiene. As for the pointy teeth, that's just down to genetics. You can't help the teeth you're born with, and not all of us can afford (or want) cosmetic dentistry.
The true dealbreaker is: does he floss, brush and rinse?
I have yet to find a man who is as obsessive about keeping his teeth clean as I am (apart from the character played by George Clooney in Intolerable Cruelty).
I agree with the points you raised in the remainder of the poem, although several of them do not actually constitute "grooming" per se.