[ultrarunner]

As a pilot, if I see a notam "that caused restricted … notices to be issued"-- especially in a military context-- I would be very comfortable describing the affected airspace as "shut down". I'm probably missing something as your link to an apparently low quality story is also paywalled. Maybe they're referring to the fact that the military almost always exempts itself from its TFRs, so technically it wasn't completely "shut down", but by that definition no airspace is ever shut down.

[defrost]

  “At no time were RAAF Base Pearce’s flying operations impacted. 

I'm also a pilot .. that RAAF base is mostly low traffic and my reading of everything published is they scheduled the media event for dead time and didn't have to abort or turn anything about.

I'd go further and guess that had the base been required for anything (sudden emergancy landing, etc) the media event would have been shut down and pushed away.

None of which supports the hyperbolic aspects of the original GP claim above.