My wife is one of those people. Loves to cook, does it at a very high level, and hates the grocery store.
I was super skeptical about food delivery, but I've become a believer. We get more meals at home, with less stress and time wasted, for a small premium above shopping at the grocery store.
It's a very immature market today, in another 10 years I think it will be the typical approach for most home cooks that aren't on a tight budget.
What they don't like to do is a) go to the store(s) all the time for fresh ingredients, and b) they like trying new things.