I think the issue with Burnside Car 1 was that it was sinking, with crew on board, and the group control centre wouldn't respond any help to them because they said CFS trucks weren't allowed to tow... We can tell the service has turned to S*^*7 when we're not even allowed to rescue our fellow firefighters..
2 points:
1) the group base does not make the decisions just passes them on from the incident controller / operations officer.
2) that incident with burnside car 1 during the floods was a little more complicated than has been written here, there were good reasons why that decision that was made (obviously!).
regarding towing, I think some of you need to read the rules a bit more carefully, it doesn't say "no towing" fullstop. Towing someone's private car with an appliance is a lot more dodgy than towing another appliance on the fireground, for example.