I was struck by the mini-heading
According to the most-basic tenets of psychology, helping people with anxiety disorders avoid the things they fear is misguided.
because this seems to sum up the thoughts of some other fields of study - for instance, rather than avoiding certain foods that could be causing allergies, there seems to be a greater interest now in treating said allergies with small but growing doses of the allergenic material; or rather than creating titally dust and dirt-free environments for kids to grow up, in the presence of some dirt and germs is beneficial for the development of the human immune system..
Whilst this doesn't mean that all the 80s/90s work referred to in the article should be overturned, it suggests that at least in some areas we have gone OTT.