No, its the level of dependency of an aristocrat.
The Clinton’s have been in high positions - governor, president, very wealthy - for nearly 40 years.
All this time they have had servants to do everything.
Exactly that. It’s not that she’s some sort of invalid. She’s lived, for decades, a lifestyle that has weened her off of an ability to fend fir herself.
The author simply isn’t aware of, or can’t believe, that the uber elites still live a “Downton Abby” type lifestyle where the only thing they need to really need to know how to do is exist.
Remember the stories of how, when she was Arkansas First Lady, she used State Troopers to fetch her tampons? That sort of thing may have started as a way to demean and show contempt for them. But after 40+ years of it she’s simply lost the basis of knowlege of how to do it herself.