How is depreciating 95% of coreboot boards worth it for such minor improvements?

Just because a board lacks active developers doesn't mean that no one is 
using it.
As a layman I simply can't understand as to how all these seemingly 
insignificant improvements such as CBMEM in ramstage make it worth 
removing almost every compatible board from the source, including nearly 
all the models that still have an open source init.

To me it seems at the rate this is going soon all that will be left is a 
few blobbed and NDA'ed development boards unavailable to the general public.

Am I mistaken?