Earlier quoted context omitted.
It really points up the difference between linguists, who understand language, and grammarians, who merely peeve about it.
There is a difference between understanding linguistics and understanding language. Many linguists who carry the banner of descriptivism completely fail to do the latter. It’s one thing to understand that wearing dark formal attire to a funeral is just a part of etiquette without intrinsic meaning; it’s a whole nother matter to come to a funeral in a Hawaiian shirt and dismiss all criticism as judgmental.
That said, whenever I hear or read "begs the question" when "raises the question" is meant, it feels like nails on chalkboard. If more people recognized actual question begging our politicians and pundits would have to work harder to lie.
Apparently, one can be a centrist on the prescriptivism-descriptivism axis