Just wanna say that I am loving the new animated load screens for The Black Mage and Hilla! Hilla looks better brought back from the dead than she did before she died!
Not to mention, to "take advantage of this", you'd have to be advancing to 5th Job. So you'd only get to do it twice 1x... Hardly abusable by anyone. Because my suggestion is to let you fight him again when the 5th job advancement tells you to kill him. And only when that quest activates.