Normally AsA ATC would be requested to provide a representative to the Emergency Operations Centre to act as a Liaison Officer. Perhaps no-one was available due to Operational Requirements or perhaps the person available didn't have any ATC experience, or their input dismissed or overruled by the NSW Police.
Exclusion zones are published and scenarios would've been workshopped by all agencies, especially ATC and Sydney Airport based on the wind / weather. RWY 16L for ARR, RWY 25 for DEP seemed an obvious option but perhaps the 40 minute recall for RWY 07/25 was a factor.