What my local art museum does is to provide the color reference image and a “ready to use” version without that. That would probably be ideal for archival + use purposes, but at the same time I understand it’s extra effort and possibly a pain in the ass (which is ok for them because they’re paid to do this, but MB editors are not).
That said, I don’t see any reason to vote No on this: it’s not like there’s a current back + spine image that could be considered better in any way (since there’s none at all). I’ll comment.