If that is so then why is taxi fuel separately calculated and provided for
Because you could already have done the taxiing. But anyway, the figure is notional. And where is the APU fuel burn allowance? TA has it spot on.
Soon we will learn exactly when a flight commences for fuel planning. Will it be APU start, push, first engine start, taxi start, taxi end, take-off power set, start of take off roll, wheels up... Will Paddy Power be running a book on this one?
PM