I would have also expected that the hashes would be of the original image, instead of the image with the newer header (https://forum.no-intro.org/viewtopic.php?t=6772).
Which is why I was asking if there where any drawbacks in using the newer format, which seem to be preferred in some environments.
From https://www.nesdev.org/wiki/NES_2.0 I see that the header is backward compatible and provides some new features.