That might depend on the definition of "masking" (and whether it includes a component of an abnormally high degree of faking), but in any case there's definitely a spectrum where some people are forced to work harder to maintain a more "normal" appearance than others.

Like body height, we all lie on that spectrum somewhere or another, and where we lie on it makes some things easier and other things harder.

What the blog writer seems to be asking for is a greater level of accommodation for differences that would affect the entire spectrum, but particularly those who are currently hurt by it the most.

You are technically right that we all need to it though.