Yup. And if you think about it for a moment, why should those women be so thrilled about Viagra? If you've got a marriage where you both want sex and it's something good for both of you, but a medical condition causes ED, then Viagra/Levitra/Cialis must seem like a Godsend.
But if you've got a marriage where one or both of you don't want sex, because of old resentments, or because of a lack of effort, or because of insecurity or a dozen other reasons we know all about from experience here, and it includes ED on the husband's part, it's likely that using Viagra to force his penis erect isn't fixing anything that really needed to be fixed. Even worse, it gives him a chance to grasp at straws and declare "Thank goodness all our problems are over!" No wonder the wife rolls her eyes.
Of course, she COULD honestly TELL him that she wants to work on more than medicating him for ED . . . . but how likely is that?