I've just dis/un-covered some very illuminating information which may be of use to this emotive topic. It took some digging

First off this is the link to a FOI ('Graham Woolgar') in 2012

followed by a critical paragraph which may explain the current circumstances.
However, since neither I, or anyone else thus far has found a public announcement - particularly from the head of TNA [don't hold your breath on a civil servant being accountable!], I reiterate the options to interested parties,but not wholly,were posted earlier in this thread.
https://www.whatdotheyknow.com/request/review_of_world_war_ii_service_rPoint '8':-
The agreed policy between MOD and The National Archives is that service
records will be transferred to The National Archives at the point that the
majority of the subjects of the record have passed their 100th birthday
as, until that point, the record relating to any one subject will be
closed. Whilst MOD and The National Archives have not discussed in detail
the transfer of Second World War service records it seems likely that the
records will become publicly available in the mid-2020s given that an 18
year who enlisted at the mid-point in the war would have been born around
1924.
To round off, here is a link to the people at TNA representing
US, the public, in various capacities for TNA, and upon the shoulders of at least one individual is the accountability to inform precisely the nature of transfer from MOD, basis of acceptance at TNA and actual process of release is being undertaken.
https://www.nationalarchives.gov.uk/about/our-role/executive-team/By the way, if Graham Woolgar is out there - many thanks for your efforts a decade back in time.