In 2012 Parliament enshrined in law the principle of parity of esteem between mental and physical health. This means that people must have the same access to NICE-recommended treatments whether their health problem is mental or physical. We are nowhere near that position now.
The development of effective and evidence-based psychological treatments is one of the major triumphs of the last decades. And based on this triumph, some folks say we don't really need to know why they work, we just need more of them. But that is jumping the gun on policy, and may just further embed the status quo into our management of mental health problems.