Re: "... anti-stall – sorry, plane pedants hate it when we call it that..."
Its more complicated than that. MCAS was put in because without it the planes had some extremely nasty handling characteristics that are absolutely prohibited, and rightly so, as Electronics R us says above. That wasn't unreasonable, I very much doubt that its the only plane that has similar fixes in software,
Indeed, many fighter planes are also unstable.
They, however, are equipped with ejector seats.