The article is about mid-range chains. The high-end properties do it well and either make money off it or know that they can't attract the demographic they want unless they supply it.

Realistically, it doesn't work for the demographic which either has to justify meal expenses or has a per diem and isn't willing to subsidize out of personal funds. But, just like having your suit pressed overnight, someone unpack your luggage and so forth, it's a great thing when needed.