Yes. I'm aware. I was trying to be as terse as possible on the diverting topic. It's disputed whether past singular they was considered grammatically correct at the time, despite the source. Of course, then you have to define what it means to be "considered grammatically correct" and who decides that and now you're entering a whole subjective can of worms that turns into circular logic, leading back to the realization that language is largely cultural and expressive, not technical, unfortunately. All of these are reasons why there's not much room for a logical argument here, and only an appeal to emotion, bandwagoning, and some historical bad actors making the "generic he" untenable.

Still, the OC was factually incorrect and this entire topic is diverting and as you've now contributed to with your sanctimonious desire to prove me wrong, controversialized and alienating here on HN.