I agree the original post isn't great, but at its heart it's a rant about an unsolved problem: some applications need proof the key is kept secure, the only such proof FIDO provides is attestation, but in current solutions attestation is either absent or weak, or is strong but locks you into a single vendor.
Ricky is right the post is woolly, but if the principal software engineer at Apple's Authentication Experience team can't respond by telling us how they plan to solve the issue the post is about, it's an unconvincing rebuttal.
Forgive me, but that’s not convincing. The post even admits that it is entirely possible to do it. It just says that it will “antithetical“. Many antithetical things have been done in the past. It won’t be the first.
These bodies need industry involvement/support (I've worked in similar WGs at both Red Hat and Microsoft), but it's very easy to engage in behavior that could easily be ladder-pulling.