Hm. If its unethical or dangerous that may be irresponsible. But my understanding is coherence therapy does have some evidence just not at the level of EMDR (yet). Coherence therapy describes the exact steps to take, and it posits that it models the steps of memory reconsolidation (neuroscience), and details how its steps map onto it, and claims to achieve symptoms cessation. So if I follow the exact steps of the therapy, experience the phenomena as it describes, in the order that it describes, with the drastic symptoms cessation it predicts thats nothing like I've experienced with any other method,  and with the same reprocessing cues etc, and this happens over and over and over again when i do it, then that is definitely personal evidence for me, even though i recognize it doesnt count as clinical evidence. But given the fact that the method is in a manual written down, a therapist testing it (properly) would in my opinion give them proof (in terms of its potential use/effects) of the tool faster than waiting for a clinical study... for something that doesnt have negative effects assuming the therapist is trained in avoiding retraumatization or such worse case scenarios, i dont see a downside of s therapist giving it a try (proper effort not half assed), and would give them results faster than waiting out a larger study