The fact that these guys already have technicians used to servicing R33's and R34's would be far more important to my choice of dealer than what happens with the list.
Na, I know plenty of people who've been servicing 32's, 33's, 34's for years. These guys were the only authorised seller of the 34 a few years back with an asking price that would make you laugh.
The 35 is a lot more special then the old skylines hence why all the authorised dealers had to get special training and upgrade their facilities. I'd happily service a 35 with any of them but ultimately you’ll be dealing with Nissan GB if there's a serious problem.
Either way it doesn't affect me. €110k for a base model and no authorised dealers. Nearest dealer is Belfast but price will be the same or maybe even more including taxes.