I could be wrong, but I think those aspects are only examined in detail in cases where the the services are actually used, eg fire or injuries/fatalities.
I agree with you though, it would be useful if that sort of stuff was included regardless. Under ICAO rules and the CASRs, they're supposed to conduct full-scale emergency exercises every two years, with partial exercises in between to make sure the plan actually works. The plan is also supposed to be reviewed in the event of an actual emergency, but I guess that's separate to any ATSB involvement.