Hi Ankira,
I'm not sure this would work from an organisational POW. You're proposing a
negative. People usually know positives, what a font file is used for.
So, from a people's POW, a rule that tells fontconfig "use this file for that set
of locales, hide conflicting locales, only use it for non-conflicting locales if there is
no better match" would work better
--
Nicolas Mailhot