Hi Tim,
I am not on Facebook and I will spare you the rant of why not, so unfortunately I cannot view Willoughby's page. I had one extreme kundalini event in 1996 the after effects of which lasted about 4 years and two other "negative outcomes", one in 2011 when the after effects lasted about 6 months, and one in 2015, where the after effects lasted about a month. You can read about the first two in my memoir "Silicon Valley Monk" which you can find
here and other places (Google Books/Play, Apple iStore, etc).
After the 2011 event, I contacted Willoughby and participated in some of her studies, and have read her papers. I would say that at that time, her primary motivation was publishing research papers about negative outcomes, which is to say well documented and factual reports, statistically backed up, to counter some of the sensationalized, anticdotal accounts that periodically appear in the literature rather rarely and the much more common glowing anticdotal accounts. It was not developing a treatment regime or educating meditation teachers about possible negative outcomes. I talked with her about organizing a conference to discuss the issue, and inviting mediation teachers, but she thought it was too early and wanted to wait until she had done the science first. I recall a while back seeing a notice somewhere on the Internet that there was conference on this topic for meditation teachers, I don't know if she was involved in organizing it or not.
I would say in my case, the incidents had relatively little impact on my daily life, with the after effects not interfering with my ability to work and with relationships with friends, outside of the time I was in retreat and maybe for a couple days to a week afterward. The exceptions are the last event, which disrupted my relationship with my significant other for about a month and the kundalini event. In the latter case, I was practicing as an ordained Zen monk, and had to attend monthly meditation retreats. Intensive meditation tends to escalate kundalini and that is why it took so long to die down. As I have never had much problem with mental illness nor does it occur in my family, I was a bit surprised, and in both of the latter two cases, I worked with a psychotherapist to understand what happened. I think that helped to clear up the aftereffects more quickly.
The primary reason I hang out here on DhO is to provide people who have had "negative outcomes" with some grounding advice: stop meditating for a while, hang out with good friends, eat nice meals, see some movies, work out at the gym, etc., and see a therapist if you can afford it, especially if the incident is having an impact on your daily life. Now of course with coronavirus rampaging, a bit difficult to follow in some cases, but anyway. Meditation has enriched my life in many ways, from bringing new friends, to providing deep insights into the human conditiion, to access to alternate states of consciousness if you want to call them that, and I want to help people who are having trouble with it. It's the least I can do.
Hope that helps.