I don’t know any good therapist that would endorse this. In fact, most modalities of therapy have some focus into understanding the perspectives of others as well as self-understanding. It’s not reasonable to go through life without being able to appreciate other people’s point of view.
The real issue is the lack of regulation (as others have said). Legally, anyone can call themselves a therapist, and people can quite easily go on a one day “trauma therapy” online course, put it on their website and say “abc accredited trauma therapist” and potential customers are none the wiser.
This is obviously very different to people who have gone through doctoral training (Clinical and Counselling Psychologists) and those who have MSc level training provided by an accredited course (e.g BACP registered CBT therapists, Association of Family Therapy accredited Systemic Family Therapists).
It’s so confusing and I can understand how people end up finding unqualified therapists and then thinking future therapy won’t be helpful, and therapy is just about talking and receiving validation.
If anyone here is looking for a therapist, I would recommend going through the UKCP directory or looking for a HCPC registered psychologist (anyone can call themselves a psychologist too, but clinical and counselling psychologist are legally protected titles so only qualified clinicians can use these). Any decent practitioner will be happy to answer questions about their qualifications if you enquire.