> The comment in [1] is from January and the spec is dated March, so perhaps they saw an early draft?
The "request for Mozilla's position" was on December 1, 2020.
Chrome enabled it by default in Chrome 89 that was released only 4 months later, on March 3, 2021.
So they "requested Mozilla's position" and still went ahead, implemented it and enabled it by default. But so nice of them to update the spec two weeks after they released it.
> The fact that they tried and failed (if they did fail; maybe they will succeed eventually?) shows that they cared at least a little about standardization
As reality and facts show, they couldn't care less about standardization.
> When negotiations fail, it's not a given that one side is entirely at fault.
Please show me at which point this was a negotiation.