https://www.koco.com/article/oklahoma-city-fire-department-crews-responding-to-report-of-helicopter-crash/36411990

If the NTSB required accident and incident reports from public use (government aircraft) and military aircraft the NTSB reports would become inundated with thousands of burdensome reports which would cost millions of man hour's and billions of dollars... 

this would severely skew data that would impact safety and industry standards.

the federal gover were wise to exclude accident and incident reports from the military And public use ACFT.