First I've heard of that being mentioned as the catalyst, and - forgive my ignorance - I can't imagine why the fall of Kabul would prompt this decision. Care to elaborate as to why, and/or provide a source?
Perhaps just a coincidence (though I doubt it), but the full-screen login pop-ups on mobile became constant that weekend. Seemed like most of the videos coming out of Kabul airport that weekend were sourced off Twitter.
Aside: lol @ your SN