Don't be so quick to dismiss it. Afaiu, (one of) the problems they intend to address is the (all too common) case of breach of security at the server where lar

Don't be so quick to dismiss it. Afaiu, (one of) the problems they intend to address is the (all too common) case of breach of security at the server where large number of passwords are stolen. The public part of a passkey, i.e. the one stored on the server, is worthless to an adversary.