Interesting. It definitely wasn't neglected; we constantly work on our web app. But it seems that it was unreliable in some browsers / signing scenarios. Please let us know if it works better for you now.
Hey @nprofile1q..., I am not familiar with nostrpass.com; is it based on NIP-46 remote signing? If not, what's the tldr of the approach? If there's a spec you can share we'll take a look.
The onboarding flow on the Primal web app wasn't very good, so we removed it for now. In general, people are much better off onboarding via mobile apps. We are working on making the overall onboarding process much nicer; hope to have something to share soon.