Sunfish, I'm just saying if you planned properly and did all the right things in flight but still ended up running short of fuel (unforecast fog at destination, blocked runway, fuel system malfunction, whatever) then you would be fine.
If you didn't do those things and got caught out, then you would rightly be called to explain yourself, not necessarily just to CASA but to the aircraft owner, the CP if it was a commercial flight, and your pax who you owe a duty of care to.