That said, our early customers are looking to deploy Keyri as an option parallel to password-based auth, which, while not ideal, is a smooth way to transition their users to a better UX that just happens to be more secure.

While you should certainly hope that this is just a "transition step", I am sure you are treating it as a business risk as well: companies will frequently have people who are downgrading their security and convenience by moving to Keyri (eg. people like me :), and they will always push back. After a while, those companies might decide that it's not worth it to keep both options available, Keyri will be the one to go (some will, of course, decide otherwise). I am sure you will be tracking this, but it's worth pointing out that this risk is there and not insignificant :)