I think it’s relevant specifically because the book itself and the points in the article are talking about physical reactions and responses to the hardware. If it was conceptually more about other things that weren’t directly related to the physical aspect of the interface I would agree with your take. Especially because the article ends with what could be constituted as a somewhat sweeping generalization that directly speaks to the physical interface aspect of the device.

This isn’t like reviewing Christopher Nolan’s new psychological thriller in that you can get the basic gist of it from the SparkNotes and say something pithy about society. You need to actually try it to form an opinion when you are talking about how far or not it has come in meeting some science fiction fantasy