I would have to agree that it always boils down to mileage of vehicle, lack of maintenance on worn suspension parts, bad tires, lift or leveling kits that are inferior and or poorly installed etc,
Brand new, none of the vehicles with this type of suspension have this problem, as far as I am aware of anyways. Suspension work is expensive and most avoid it until they have a major problem.
I drive a lot of cars/trucks at the shop, and the sheer number of newer vehicles with sloppy steering and clunking suspension is quite concerning.
If only some have death wobble, and the guy with the same unit down the street does not, then it must be a set up or maintenance issue.