I think it was unfortunate that this piece did not begin by conveying that the original study's authors specifically state their goal "was to develop a temporary feeling of closeness, not an actual ongoing relationship".
Additionally, like many social psychology studies the nuances of the design and methodology are extremely valuable, yet this piece deems them as "dry" and mostly "devoid of enthusiasm". Anyone who has contributed to the design of substantial social psychology studies can tell you just how carefully each of these details is considered in design, implementation, and analysis. The original article [0] is full of detail, context, and discussion, and is definitely worth a read.
[0] https://psychodramaaustralia.edu.au/sites/default/files/fall...