He can't just say "I conform to the mandatory requirements of NIP 771." because that might be a completely different document covering a completely different topic... tomorrow.

And he can't plan the implementation of NIP 14, 15, and 231 because those NIPs might

- disappear,

- be rearranged,

- be sliced and diced and

- have their content spread out to other NIPs, or

- be completely rewritten,

by the time he gets around to implementing them.

Even if it's only a matter of weeks.