My mk7 didn't come with 19's even though it had the pano roof, salesman said they affected the fuel economy figures!?
On the Mk7 configurator when you add the 19's and then go to add the pano it says:
If you choose
Panoramic sunroof, you cannot have Alloy wheels, 19" 'Santiago'. Please pick from the alternatives to replace Alloy wheels, 19" 'Santiago'.
On the Mk7.5 it just says "give me the cash baby"
Probably thats a mistake on the configurator. No reason why technically you can't, its just that it will certainly make the harmonised CO2 figure for the vehicle incorrect, which will be a DVLA "fraud" by misstating the CO2, but that's not your problem ;-)