I do think it is a bit unwarranted, actually. This isn't a press release, it's a technical discussion somewhat deep into a technical process that's open for archival purposes. His audience is not people skimming through, it's the Chromium team and other members of the standards body.
You're sort of overhearing a conversation and injecting yourself into it.
And this is not really a technical issue. It's a worldview issue no matter how much you or others try to pretend it's a technical problem or that I am violating etiquette or something.
I'm actually so curious what you think is going on here