Afraid I am neither a CBT monger nor GP, but work in cardiology. COme across CBT through the smoking cessation service.
There is clearly some very flawed logic going on in terms of the efficacy claimed, however as I understand the Govt. position it is fairly simple CBT has worked in studies and is therefore evidence based. Since other techniques have not been able to demonstrate evidence of clinical outcomes in studies funding is being moved away from them toward that which has evidence.
Clearly no one has thought through what to do with those for which the evidence based approach does not work.