I... Don't remember, tbh.
I think I may have just taken your word for it that it worked at the time, because I was looking for a way to make Phoenix work, and parsing your disassembles I found the necessary change to be made in RAM to actually revive fallen characters, at which point I stopped being concerned with whether this would work.
I can't really look into it tonight, but I should have some time tomorrow to test it out. I'll let you know.

Sorry, Grimoire, this fell by the wayside today in favor of Shadow Party R&D. I've got a three day weekend coming up tomorrow, though, so I should have plenty of time to look into this.