FAUSTINO I ? Really? I'm not so sure.

I bought this wine at COSTCO in the UK for GBP12.50 a bottle.
From the tasting, great value. But......
Every Faustino I I have bought and sipped over decades has been Gran Reserva, not just Reserva. This wine cannot be found on the bodegasfaustino.com website, only COSTCO's.
The only conclusion I can come to is that this is a "dumbed down" Faustino I to label at COSTCO.
If I'm wrong I want to know. Otherwise I think this is shabby.