Just as a small side note: from my understanding of CC licenses, once something is published under a license like CC BY-NC-ND 4.0, that version stays under that license forever. The license can only be changed for future releases, not retroactively taken back.
That said, I completely respect your wishes, and I won’t use the graphics unless you’re comfortable with it. Do you have any idea how soon you might update your mod to 2.0? If there’s anything I can do to help with the update process, I’d be happy to lend a hand.