Expedient, quick, and low cost; yes, it met those goals. Until the grounding...and the lawsuits to follow. Penny wise. Correcting an aerodynamic problem with a software patch, great idea. Tickling the dragon, as Gums says. Making changes to the flight control system, without telling the pilots? Ethically, morally, and even fiduciarily; dead wrong. Using the horizontal stab as a stall prevention system? Excessive. Using one AOA vane to make critical decisions? Shortsighted. Trying to implement a semi-FBW into a manual-reversion airplane? On the cheap? Asinine. Moving the stab (repeatedly) a set amount without any check of it's initial position? Moronic. Sending this airplane out without any warning of this new system? Downright murderous.