Though I consider The Chronology of Water to be an anti-memoir for very precise reasons, it is an art form, and thus as open to "critique" as any other art form. Memoir has a form, formal strategies, issues of composition and craft, style, structure, all the elements of fiction or nonfiction or painting or music or what have you.
Lidia YuknavitchWhen a female character sets herself on fire in an effort to interrupt her culture's violent abuse of disenfranchised people, or physically tortures and punishes her guardian rapist, or picks up a gun and fights back in ways that make her not pretty, or aggressively rejects her role as the object of desire, or even when she waddles off into the woods to squat and have a baby without the safety and expertise of hospitals and doctors, these are the kinds of violences and stories we can learn from.
Lidia YuknavitchFiction and poetry expose intimate things from a person's life every bit as much as memoir does, and sometimes more. I don't quite see or live the distinction you are making about the forms.
Lidia Yuknavitch