In various threads on these fora we read from time to time how ATCers hands are tied by MATS regulations. Oft times ATCers themselves disagree and believe there is a better way to handle a particular situation.
Similarly pilots are governed by their own SOPs and regulatory environment.
I can just imagine the tea & bikkies back at the head-shed, when Capt Bloggs explains that his/her turn around was delayed because of hot brakes because s/he tried to help ATC get another aeroplane away, by disregarding SOP and to hell with the consequences.
The real culprits of course in this whole scenario are the idiots who designed the BNE Airport runway/taxiway and didn't consider the A380.