Martin Place siege

The Martin Place siege and tragic aftermath and criticism are now behind us and we have the Coroner’s Report:
Families have been understandably upset and complained that the police relied too much on various people such as a psychiatrist. Who are they relying on for their knowledge to actually deal with a mad man and a siege situation.  Were they present during the siege?
Give the police a go! One person killed by a richochet and one murdered by the madman – look at massacres in other situations around the world.
The Coroner was remarkably balanced and necessarily unemotional and I applaud his judgement.   The police were not to blame for the situation but he offered various suggestions in case of another such incident –
If a different scenario would his suggestions be appropriate.   Surely every situation is different and needs different answers.