Pfff, when I saw "Thunderbird in 2019 (blog.mozilla.org)" in the list of news I thought they were going to add ads to it like they did with Firefox. :)
I don't have autism (or at least I'm not diagnosed) and none of the faces evoked any effect on me. But maybe it is because I'm fixated on the faces and not on the bigger picture.
When I read a criticism this petty I had to double check to see if it was a woman who had written the post.