But I would argue, either way, that it means that GET is unsafe as a treatment. Do NICE really want to leave a treatment in place that is potentially being delivered incorrectly in such a way that it harms patients? And how would NICE know who is delivering it correctly or not?
Removing a recommendation for being harmful after it was strongly objected to at the time for the harm it would promote would be an acknowledgement that the process by which it was approved would need to be evaluated, possibly massively reformed. That would be a massive wrench in the deployment of IAPT.
Advocates and experts told psychosomatic proponents their misunderstanding of the disease was harmful and not based on credible evidence. Many other countries are facing the same dilemma, highlighting that it's a general problem, not one of specific implementation or choices. There is a long public record of those objections, which have turned out to be accurate (as the truth usually is). NICE and the entire NHS rejected those objections as unfounded and meritless. They didn't listen, didn't care to listen. Proponents of this model assured everyone those objections were mere whininess.
Cheerleaders of the psychosomatic guidelines have been warned plenty. They still went ahead with it, confident that their biased and prejudiced perception of reality was better than our own lived experience and the entire body of evidence supporting it. To remove the recommendation would be an admission of a major, disastrous fuck-up of international significance.
Psychosocial ideologues burned the boat when they came onshore. There is no turning back from this without rightfully destroying the careers of those who promoted nonsensical garbage despite the desperate pleas of those who would be harmed by it. One specific deflection was always "no evidence of harm", oftentimes in direct reply to testimony of harm.
That's just too big of a man-made disaster. Especially as there was no urgency to it, no forced decisions pressed by time or circumstances. This was the product of thousands of entirely wrong choices, made against consistent pleas to not go down a road that would end up harming millions. Entirely willful and deliberate. It can't be walked back, not without major consequences that would involve legal, financial, potentially criminal, consequences.
Dr Frankenstein's monster is out there, trashing the countryside. He's not coming back to the lab any time soon until it is forced to.