perl-Parse-BACKPAN-Packages should be retired in rawhide. It's been replaced and obsoleted by perl-BackPAN-Index (bug #664204).
The only reverse dependency was perl-Git-CPAN-Patch which now requires the new perl-BackPAN-Index instead.
trac ticket created for retirement. https://fedorahosted.org/rel-eng/ticket/4338
I suppose this is fixed now.
It's only blocked in koji - not officially retired in pkgdb (I can't and rel-eng wouldn't).
It's formally retired in pkgdb as well now.