Also, the kind 4454>4455 bootstrapping process assumes that at least one other client storing the genesis secret encryption key is accessible. That may not always be the case. If my phone is smashed, I may lose all clients at once in an irrecoverable fashion. In the past, I only needed to back-up a single secret: my identity nsec. Now I also have to track & backup multiple secret encryption keys across multiple clients. That's bad UX.