This is the stupidest take on hospitality I've ever seen. This person needs to be beaten over the head with a copy of Derrida's "On Hospitality" until they become unconscious or learn something, whichever happens first.
I have, based on what Derrida referenced on his writings on hospitality and his Adieu to Emmanuel Levinas, but I haven't gone in detail on it.
If you're interested in seeing a food-related take to ethics as hospitality, I really recommend the essay "Ethics is Hospitality" by Raymond Boisvert and Lisa Heldke, too.