I have written a lengthy post explaining it, but it appears you didn’t respond to any of it, but cherry-picked on one of my examples.
Yes. I think a fair compromise is to focus only on boot libraries. That doesn’t mean everything that is in boot libraries needs to land in a new standard, but it gives a good overview on libraries that are used by almost everything.
When certain extensions are deemed unfit for the standard, e.g. because they are actually not that well-defined, we have to figure out if those extensions are actually crucial for those libraries or if they can be implemented without them.