Ok so... I tried to get the remoteSecureElementPasses without implementing WCSessionDelegate inside the non-UI extension and without activating the WCSession and I don't know how but it works... So everything I do to get remoteSecureElementPasses is: "let paymentPasses = passLibrary.remoteSecureElementPasses".

Hey, in this post i wrote few key points to follow if you find it useful: https://forums.developer.apple.com/forums/thread/734817?answerId=780177022#780177022