Limiting a race to one class is silly. ESPECIALLY when that new class lacks a melee/tank specc.
Do I agree that we're oversaturated with melee? Yes. Absolutely. A new class that focuses on range/healing is a brilliant idea, but locking a brand new race to that one class is a mistake. It's like adding a brand new spell that does ultra mega damage to mage, but only gnome specific-mages can get it.
One limitation is quite enough for me. Making something double-extra special is a mistake.