as a non crafter i was waiting for patch 1.19. however i think SE threw a few in your face things they could have warned us about before hand and this is definitely one of them.
the dying process and its limitations is not only intimidating to me but also just plain diminishes my interest in the effort.
i just cant really think of any reasoning for dye color itself having anything to do with class or stats...
i truly hope this changes soon.