Anyway on an interesting note you said "We’d put a restaurant like the one in this article on our list of places to go with couples."
What is funny is that they are not open tonight, Valentine's Day. Probably one of the most busy nights of the year for dining out especially for couples only because I don't know of anyone that goes out tonight with their kids.
Interesting point that their closed on Valentine’s Day.
Another possibility - they are family owned and reserve that night to celebrate themselves, despite the missed financial opportunity.
Once knew a couple that owned a bar at the Jersey Shore and closed it every memorial day weekend for family celebrations. They just didn’t care about missing the long weekend business. Their family plans took precedence.