There are fundamental realities associated to being a public figure or representative. When you are even privately held sentiments or actions reflect upon the larger organization. This reflection isn’t a purely social construct, but itself an acknowledgement of human cognitive flaws and biases that inevitably leak through to decision making.

For example, you don’t want the director of a science outreach organization to privately uptake all manner of pseudoscience, because they cannot be trusted to carry out the organization’s ostensible mission. When these sentiments come to light, said directory is morally obliged to step down.

A personal blog is definitionally public, ergo by extension reflects upon whatever organizations that person is a member of.

I say all this as someone that does not even feel the posted article is particularly incendiary.