I think you're right, and the rpm packaging of perl5 is rather similar -- but simpler, as there aren't the bifurcations into moarvm vs jvm, and panda vs zef.
But perl6 is young yet. Happily, it's not too hard to package a single compiler, e.g. rakudo-moar. And as long as you're comfy with rpmbuild, you can knock out a few modules, then script the process. I no longer have the actual code, but my cpan2rpm script was really short and simple.
