I mean, I think these days it is pretty easy to update this stuff and I do appreciate places like Rustic Canyon that update menus and prices online daily. But I get why a restaurant may not want to put time and capital into that aspect. I mean, most restaurant websites are UX and UI nightmares to begin with.
That said, Yelp is good for very little, but menus and food pics are covered well there.
I find it weird to make a lack of web savvy a deal breaker when anyone can get the information they seek. But okay.