From what I overheard on the night SQ245 turned up to Bne the 1st time with only 10 min holding when it was notamed for 30 min! After being told they couldn't jump the queue unless they declared a fuel emergency they decided to divert to Cooly, by the sounds Syd was not in the equation.
So basically they could have avoided the **** fight that entailed if they had the mandated holding fuel in the first place.
As a side note the TOD must have been getting up there!