I think this article only applies to people who are truly LD and have always been that way. The only example from this group IMHO is Mrs. Nop. Although I'm wondering if honeypot's H falls into this group, too.
The wives of GGD, ZB, Lou, etc., GEL and GEL's Husband, cinemanymph-- all of these people were/are HD and became/used to be LD (or the reverse... ). In these sitch's the LD was due to abuse, anger, inexperience, whatever. OR the HD was due to the newness of the marriage, desire to get pregnant, whatever. These people aren't the LD that this article refers to (that's my speculation).
The point is there are some people who are (oh God, I'm asking for it here!) "tone deaf" when it comes to sex. Those people, I'm speculating, probably will never become HD or even moderately D, although they may change their behavior.
HD, your question about your W is certainly valid... which is the true Mrs HD-- with desire or no desire. Since she doesn't seem willing to act in the presence of no desire simply out of love for you, it does become a relevant question.
As for Lust for Life's H... I don't know. He may be an HD who has come out of the closet, or maybe he is still LD-- that is, has no spontaneous desire for sex-- but he is so scared of losing you that he is doing the behavior you want, or doing it to express his love even though he could take it or leave it. I'm not sure there's any way to tell if he will revert to his old behavior once he's sure of you again.
As for fantasies... my late H couldn't come up with any when asked... although I have extremely elaborate ones and have even written some up in the form of erotic science fictions stories that I think are quite marketable!
). In these sitch's the LD was due to abuse, anger, inexperience, whatever. OR the HD was due to the newness of the marriage, desire to get pregnant, whatever. These people aren't the LD that this article refers to (that's my speculation). 
