What most important is the OCTA airspace south of Willy was cavok and the LSA was 1300'. So no problem at all NVMC.
These military people will do everything they can to blame others. It's a type of " groupthink" they must learn.
My concern is the present day huge roadblock airspace. Same accident can happen again however more likely pilot will be told going in the wrong direction because of changes I made in the 90s. Pilot will be talking to a person with a radar screen.
What's wrong with FAA airspace dimensions and MOAs rather than restricted airspace? I know- never ever ask advice or copy worlds best practice. We in the RAAF know it all.