I'm not sure non-technical people have a good understanding of or experience with password less email login either. While doing tech support I've seen people get very confused at the need to open another app to login in or the fact that they're now logged in in the webview of their email app and not logged in in the app or browser they had been using (especially if the first thing that web view does is pop up a giant "try the app" modal)

I can't stand the 'use the app' nag modals!

Thanks for your insight. Outside of being a consumer, and as a security engineer one who appreciates things like passwordless, my experience comes from my employers passwordless rollout. The sentiment is broadly positive, but we would veer to a technical user base, and sentiment misses the nuance you brought up.