Yup, nostr:npub10npj3gydmv40m70ehemmal6vsdyfl7tewgvz043g54p0x23y0s8qzztl5h has tested custom Grapevine WoT lists on Amethyst and they appear to work!

nostr:nevent1qqsz9vj4glkd6ja4du9ddx3synm68dux03exlvq6g7vg8gzln2dhcdsdqzlqu