Agreed. Most of us really do not think about this shit as often as we should. I know I am guilty of assuming he when typing. I know because I make an effort not to be. And notice how often I need to correct text. Being older than many developers. I just grew up with the assumptions. So like many my age needed my attention drawn to the societal indoctrination.
People politely pointing it out is important. As is people volunteering to help correct older documentation.
Even more. That is why the vice president and a whole protocol of succession exists.
An old president is hardly like a feudal nation where a king dies without children.