I have seen no reports that indicate anyone on the highway was injured. I see nowhere on the golf course that is longer than 1,000 ft before hitting obstructions. The median has a cable or other barrier and is barely more than a wingspan wide between carriageway edges. The Southbound lane is about 110 ft between the median barrier and the wall and almost all obstructions except the wall are moving in the same direction as landing.
The touchdown (ground impact) seems to have been on the roadway but to have resulted in collapse of the right MLG then shortly after the left MLG as the aircraft leaves the paved surface. Did MLG collapse cause rupture of the wing tanks?
The crew had less than a minute to sort this out. I'd say they did a damn good job that three on the aircraft survived and no one on the ground was killed. Very sorry the pilots were not so fortunate.