This is the equivalent of saying exercise is bad because "People who engage in physical activities sometimes experience unwanted muscle soreness and joint pain". Dredging up old repressed emotions is one of the first things I learned about meditation, and you're supposed to learn to deal with them instead of keeping them buried in your head forever.
At the same time though meditation traditionally was practiced in various communities with social safety nets where elaborate maps of mental states and wise gurus could help guide you while the most potent and esoteric practices like Kundalini activation or advanced breathwork were kept hidden for most people until later stages.
Today these maps that all still very much exist inside various lineages through poetry, koans, books or through oral teachings have fallen away while people often sit alone in their rooms looking at apps completely deterritorialized from the incredible wisdom that sorrounds these rituals and that in my eyes form a very important yin to the yang of practice.
Besides that psychotheraphy and bodywork is also often a good preliminary "grounding mechanism" that already very disassociated people need as to not make themselves disassociate even more, or take a very deep fall into emotion after having fled from them for years.
This fall is called "Dark night of the soul" in modern language and is very well known.
For people interested in this stuff let me recommend the Stream Entry subreddit based on the books by Daniel Ingram "Mastering The Core Teachings of the Buddha" which is a pretty interesting and STEM like exploration of the subject - but that is also a bit cold and potent so above warnings apply.
What percentage of articles about mindfulness tell you that you’re going to recall terrible memories and have to work to overcome them? Do the human resource departments that advocate mindfulness tell employees about this?
Except that physical exercise is related to well understood, easily measurable mechanisms. Perhaps this article seeks to counterweight the overwhelmingly positive reputation that meditation etc has.
