There is no specific PC1 rule with respect to NVG, or vice versa; what is being discussed is an interpretation of operating practices by EASA 'Airworthiness Personnel'. It is not really clear why they have been asked for their opinion - particularly when the EASA opinion is no better than any other's (in the eye of the law).
Aucky has spelt it out exactly; the circumstances where PC1 is mandated is not in dispute, only the practice of using unlit heliports where PC1 is required.
Jim