NTSB did release some follow up data. They have the bottom of the jet at 325', +/- 25'. Helicopters add a tough element to any airport operation and DIA is one of the more challenging airports with the extra restrictions on routing.
(Never flown into that one as not an ATP. I'd never be able to get closer than College Park. Even that was a non-trivial exercise in paperwork.)
You may laugh, but that's historically the argument in support of these practices. No one wants to go on record as questioning the practice. Maybe they will finally do something now? But it wouldn't surprise me if they don't.
(Never flown into that one as not an ATP. I'd never be able to get closer than College Park. Even that was a non-trivial exercise in paperwork.)