How did ICAO/CASA drive this change?
I would think they would be more interested in the potential non compliance associated with not displaying nav lights during the day in IMC, and unless QF group aeroplanes turn their nav lights on and off as they go through cloud, I would think that by not just turning them on and leaving them on they are technically non compliant
I say technically as I dont think anyone really gives a crap, but if they are changing procedures to meet an obscure requirement I would think a slightly less obscure requirement would get a look in!