thanks for coming back on perl5-utils/File-ShareDir/pull/3.
I really forgot that it's still open.
While I discussed related things on cpan-workers@ and prove on File::ConfigDir + File::ConfigDir::Install how slightly improved EU::MM, I recognized that FHS compliant File::ShareDir will break File::ShareDir::Install and in distributions with more than such an Install-Extension it will leave the developer alone with the deep darkness of EU::MM extensions ...
So - yes - the approach is important and needs to be worked in somehow, but the big picture needs to be structured before.
Sorry for put you off again.