She specifically says “But what about when your vulva remains dry during arousal but your partner is ready for penetration?” I interpret that as “when you are aroused ie want to have sex but are still dry". So yeah.

I don’t have chronic dryness it’s just a part of my monthly cycle for a few days each month. It’s natural and that’s the only time I have lube. Even when I masturbate. Because I am a highly sexual person who in an ideal world would have sex multiple times a day every day.