I was quite often told by captains flying into Sydney that you did not turn until told to by ATC. Even when I pointed out the wording on the ATIS, “yeah but you’re turning without a clearance then”.
The more sensible approach in the Airbus would be to leave it in NAV Blue when you extend the centreline, that way the aircraft will turn you to avoid going through the centreline based on your ground speed etc.
But I was often berated for trying to do it.
morno