As a seasoned traveler, both with and without purpose, I feel the author is erecting a straw man tourist that fits no real person. "No, I don't mean those who travel with purpose, nor those who actually appreciate the place, nor those who follow through with a life-changing experience, nor those whose year will now be more bearable thanks to the memories made during the trip, nor those who think they got something ou…
The most obvious example of this in context of travel are these huge cruise ships. No one is really doing anything wrong with that, as such, but craptons of tourists descending on your comparatively little city or town can become quite disruptive (as I've experienced first-hand as a resident).
There's quite a few problems like this, from small to large. Humans don't seem very good at taking "collective responsibility" for these sort of things, "because I'm doing nothing wrong", which is true, but also not.