Quartsite's LTVAs can be dusty, but it's nothing like Burning Man. The LTVAs are covered by Desert Pavement, small rocks and stones that the eons of wind have left behind to form an unbroken hard shell top.. They don't generate much dust, what there is comes mostly from cars travelling too fast down dirt roads where repeated traffic has broken through the "pavement" to expose the fine dirt underneath.
Burning Man doesn't have the pavement layer, the entire playa is one giant dust bowl.