NTSB is not the regulatory authority
The GCAA will produce the report, and take into consideration all and any outside, (interested and INVITED) parties.
Protocol dictates that should the NTSB, or even CNN decide that the report is not what they expected, then they can issue their own seperate additional unofficial report.
The 707 in Sharjah, has no conclusive report: "as the black box was unavailable" the cause if the accident in not know.
However within moments of the accident the official view was "there is no blaim associated with the airport or atc".
The glider in Morocco, and the UAE pilot.
The helicopter in Abu Dhabi, and the actual person at the controls at the time of the accident.
The GCAA are the only source of the OFFICIAL report.
If you seek clarification re responsable ATM management refer to the associated ATC threads.
End game.
glf