There is some recognition within the NHS and NIHR that it needs to change - a 2017 document pdf =
12 Actions to Support and Apply Research in the NHS from which:
"Engaging with patients and charities, we will articulate more clearly what are the NHS’s national and local research priorities. There is a clear mutual benefit. The NHS wants answers to the most important researchable questions, both operational as well as strategic. The research community wants its findings to be as useful as possible to NHS clinicians, managers, and patients, thus boosting the likelihood of widespread adoption. Wherever possible, policy and practice should be informed by the timely production of sound and actionable evidence."
The head of the NIHR is the Chief Scientific Adviser (CSA) at the the Department of Health and Social Care - Prof Lucy Chappell (as mentioned multiply above in this thread) was a new appointment in 2021, Professor Lucy Chappell appointed as Chief Scientific Adviser replacing Prof Sue Hill, who had been in post since 2002 ! so Chappell has the potential to be a "new broom". The NHS page on the CSA still gives Hill as post holder: Chief Scientific Officer (CSO)
I doubt there is much value now in doing a postmortem on past NIHR funding decisions, the time for asking those questions is probably now past for any useful purpose, unless of course the NIHR is seen to be 'flogging the CBT/GET dead horse' with further large funding allocations in which case the history will be relevant and need to be challenged. For now positive engagement via Javid's involvement is probably the best strategy and though it may stick in the throat - forgiving past sins being the way forward.
When I was going through the NIHR docs for the figures in this thread:
https://www.s4me.info/threads/funding-of-me-cfs-research-in-the-uk.2533/#post-406747 I came across an NIHR page that irritatingly I didn't bookmark and now can not find - it included a list of 'grant advisors' most of whom were NIHR insiders, one name that stood out was Trudie Chalder - a subsequent page recorded Chalder as having left that role (IIRC) in 2019. One can see how there may have been a lot of 'divvying up' of grant allocations via the various specialisms represented by the advisors - so everybody got a bit of the cake, with quality of research not necessarily the main driver. But with a new regime in play I don't see any value in digging into that.
Edit to add:
NIHR Open Research - Advisory Board Members