The racial starting clothes fulfill the role of a lovely dyeable unique set for each race. There's even some cool lore about the sets in the lore book! The same restriction shouldn't be put on hempen gear which is much simpler in design and can be paired to make lovely combinations in some cases. When I switched to Au Ra the thing I missed the most was the female miqo'te hempen, and I would pay a stupid amount of money (or gil) for the midlander hyur female hempen. That's the best shirt for the lovely dreadwyrm healing pants!