What a bunch of hogwash. Everything does not fit into the request/response model of HTTP and the Internet is certainly the web.
A highway is a type of road. As are streets, byways, lanes, courts etc... URLs need not be protocol specific, but having a standard makes inter-protocol communication that much simpler. In fact the post was primarily about how we label things (nouns, verbs etc...). I'd say most things fit the model of giving, taking and changing things, no?