But Perth, Brisbane and Adelaide have there (Reserve+Mixed) sides playing in the local (Amateur) competition as well as the NYL(And soon FFA Cup). Show me where FIFA says NO to that?.
If the FFA says yes to the Nix's and FIFA confirms it, Then same should apply to NZF allowing a Nix's youth side to play in its main youth competition. Its quite anti Pro football and if another NZ based A-League side was to emerge and wanted the same thing but was denied - You would have to think to yourself "Who's running NZF?".
In Oz would they not just have to sit out the 30 day stand down to qualify to the local Oz grades? Need the rules wizard in here
Oceania gave the FFA the OK to have the Nix's in the A-League, Part of that original licence had the ASB teams sign off on allowing the Nix's to play for a O-League placing (Think it was Graham Seatter's idea). But it fell through for one reason or another. However the OFC still has an invitation (From the FFA) for another OFC based team to join the A-League ( Karembeu's Oceanian 11?).
So why would they (The OFC) turn there back on the only professional football club in the region having a reserve side in NZFC or ASB prem.