A scam is typcially defined as a fraudulent offering that takes money from you and does not provide what was offered. AFAIK, NSHSS has been around for a long time and provides the benefits that it describes.
Many consider it to not be worth the price charged, but everyone has their own way of valuing what may be offered.
I would not recommend joining, as I don’t believe the benefits offers are worth the price charged. This is the same feedback I posted about the Van Gough Immersive Experience discussed in another thread. I did not classify that as a scam.