This is as tedious a fight as the old "hacker doesn't mean cracker!1!" one was.

Words (and phrases such as "begging the question") mean what they're understood to mean by the majority, much though those of us who understand their "proper" definitions might like to fight those tides.

Sure, you can still use the lesser-known or overtaken meanings in particular scenarios when you know your audience has a shared understanding, but that's true of all jargon or less-common definitions