there's formats other than TPM like Apple and FIDO U2F, so I don't think Apple, Yubikey (which chairs the standard's working group), and the password manager industry (which already does passkeys) would just let that happen.
i am not convinced regarding TPMs
i am not convinced regarding TPMs, and I agree with the FSF on 90% of other things they say. the essay assumes that making a DRM-free copy will be made hard enough that it's very impactful ("no excuse for the system" doesn't really faze me). (c.f. PDFs already technically support prohibiting copying. Nearly all PDF readers support overriding this feature. c.f. email read receipts. c.f. the massive multieclecticism of software to open the same type of document and the aging hulk that is most companies' IT infrastructure. c.f. "Microsoft quietly extends Windows 10's extra security updates program for free".) even if that somehow does happen, partly thanks to how inconvenient that'd make sharing and how companies often need a dozen people to access the same document, there will be somehow a way to share keys.
it's not something the average citizen needs or uses a lot, unlike potentially passkeys
i would certainly say the average citizen uses HTTPS a lot
Let's Encrypt is a non-profit while the common Passkey server-side storage vendors don't seem to be
(context for onlookers: Let's Encrypt is the most popular certificate authority, while the analogous to attestation is the concept of certificate authorities and not any one certificate authority.)
Let's Encrypt was only founded in 2012 (and announced 2014) with general availability in 2016, while the current HTTPS standard with certificate authorities had been around since 2000. Passkeys, 2021. I think fairness is something the world needs.
