This is interesting and of some personal concern, as a loved one has desperately been trying to get CBT for literally years now (on the NHS in the UK).

CBT is interesting in that there's evidence that it actually somewhat works as a psychotherapy, a field full of treatments lacking in evidence of function.

I suppose the question then is: is adding some biases to get the patient out of a crippling depression or other dysfunction an acceptable side-effect? Effective medicines frequently have nasty side-effects, after all.