I’m not sure I fully understand what is going on here, but as always in government (and in any major private organisation, IMO), isn’t it just a negotiation? As in, “X asks for 150%, knowing it will be lucky to get 90%; Y rejects that and offers 50%, but in reality being willing to go to 70%; and in the end they compromise on 80%”. That is a negotiation and the art of a compromise - you don’t get everything you want, but you are still (in this case) 80x better off than before (on the one hand) and (on the other hand) 70x saved compared to the original demand.
It seems that whenever these strategy documents (wish lists) are published by their proponents, joe public thinks that they are the base case - they are clearly not, they are a negotiating instrument and inevitably they will get watered down. Try to see these strategy docs in those terms and look at the positivity in the compromises that result (try to imagine the compromise was the starting point and then you will see what an achievement the compromise is!).
It seems that whenever these strategy documents (wish lists) are published by their proponents, joe public thinks that they are the base case - they are clearly not, they are a negotiating instrument and inevitably they will get watered down. Try to see these strategy docs in those terms and look at the positivity in the compromises that result (try to imagine the compromise was the starting point and then you will see what an achievement the compromise is!).