[jjav]

> The most problematic and the most probable security risk I have relating to logins is losing access.

Exactly. Unrecoverable secrets tied to closed hardware solve for the scenario where your most important criteria is that no attacker be able to ever access your account, even at the expense of yourself possibly losing access to it forever.

Does this solve a problem anyone actually has for consumer accounts? No.

That threat model makes sense for highly classified information where it is preferable to lose the information forever than have an attacker get it. Other than that, it's not a reasonable threat model to optimize for.