Based on other people in the field whose responses were quoted at the end of the article, I suspect this phenomenon may still be occurring. Specifically:
"David Pincus, a psychologist at Chapman University who specializes in the application of chaos theory to psychology"
"Stephen Guastello, a psychologist specializing in nonlinear dynamics at Marquette University"
"David Pincus, a psychologist at Chapman University who specializes in the application of chaos theory to psychology"
"Stephen Guastello, a psychologist specializing in nonlinear dynamics at Marquette University"