"gunblade of the round" and other such mastercraft primal weapons for new classes?

[Doozer]

I expected level 50 weapons to not be available, since sub-50 weapons weren't available to RDM and SAM if I remember correctly (and sub-30 for AST, DRK, and MCH), but there's so many things from level 60 to 70 that are missing for GNB and DNC that make no sense at all.