There are too many groups with conflicting views and interests on the BHA board.
ARC have no interest in reducing their fixtures and would vote down any proposal that would enable this. The RCA have to represent their members views at the BHA.
This is one of the reasons why Ascot and the Jockey Club racecourses have left the RCA as they can see the future of the sport is being damaged and their voice is not being effectively represented.
Until the governance structure of the BHA changes and it becomes independent, with the ability to make changes for the good of the sport, without agreement from all members, then we’re doomed.
....and you've got to look a long way back for anything else.