I've tried it before.
I thought it was a great job and I'm thinking of using it to introduce friends and family to Nostr.
Only two personal opinions:
1. The bunker part already seemed to me a lot of new information for someone who doesn't know the protocol.
I understand that this is a good practice and that it is a step that can be skipped. But I think that's where a lot of people would leave it for "to see it more carefully later".
Even the part of saving the nsec is already a great journey for the "normies."
2. Is it intended for web browser only? It would include links for clients in android and iOS at the end.