I think some clarity is needed around this response. 

While you cannot connect your primal address to another Nostr client (via NWC)

Your Primal Wallet is a Full Fledged Lightning Wallet wherein we can send and receive sats to and from its address. 

Just yesterday I paid a zaprite invoice from my primal wallet…

I think what you are trying to say is we cannot, for example, connect the primal address to other Nostr protocol apps such as Amethyst or Habla, etc