Anything that randomly makes a Windows 8-style popup offer to keep my login credentials safe makes me want to run farrrrr away.
The vibe of the original criticism, even with its technical flaws was this: are passkeys - as a standard, and a user interface - vulnerable to corporate capture? I think passkey defenders are focusing far more on the theoretical technical superiority, and ignoring how instinctively alarming the average implementation is.
We face a lot a lot of attempts to capture our data, and passkey feels like a new frontier.
For me, I know exactly where I am with my password manager & TOTP. I think the current confusing interface of passkeys will make me less secure rather than more, so I've not invested the time to think about how to use them.