Really good article! I don't often read them all, but because I was updating my resume I did. You changed my mind and you motivated me to update it.
I totally agree with all the points you mention. They make sense while reading them. Thanks to you I removed a lot of irrelevant content from my resume. It looks more clear now!
Just last point would be for the spoken language.
In my personal case, I'm currently based in China and interviewers appreciate candidate who can speak and read Chinese. As some Chinese technologies documentation aren't always translated in english. Also some local teammate might not speak english.
That's a question that I almost always got during interviews, and I think in my case it's relevant for me to mention it on my resume.
Thanks again for your article, it was very useful to me.