Mitchel, as leader of Mozilla, was essentially speaking for the entire organization; an organization, and set of ideals, Gerv devoted his entire adult life to.
Saying things like--
"Eventually Gerv felt called to live his faith by publicly judging others in politely stated but damning terms. His contributions to expanding the Mozilla community would eventually become shadowed by behaviors that made it more difficult for people to participate.
...
Gerv’s default approach was to see things in binary terms — yes or no, black or white, on or off, one or zero. Over the years I worked with him to moderate this trait so that he could better appreciate nuance and the many “gray” areas on complex topics. Gerv challenged me, infuriated me, impressed me, enraged me, surprised me. He developed a greater ability to work with ambiguity, which impressed me.
Gerv’s faith did not have ambiguity at least none that I ever saw. Gerv was crisp. He had very precise views about marriage, sex, gender and related topics. He was adamant that his interpretation was correct, and that his interpretation should be encoded into law. These views made their way into the Mozilla environment. They have been traumatic and damaging, both to individuals and to Mozilla overall.
...
To memorialize Gerv’s passing, it is fitting that we remember all of Gerv — the full person, good and bad, the damage and trauma he caused, as well as his many positive contributions. Any other view is sentimental. We should be clear-eyed, acknowledge the problems, and appreciate the positive contributions."
I'm sure was a great comfort to his surviving wife, children and friends, in their time of grief.
David Anderson articulates some of my feelings on the obit better than I can.
https://lwn.net/Articles/762345/