Initial Reflections
The final boss certainly lived up to its name of Chaos...
I'm going to do a fuller retrospective on the game as a whole after this, particularly with context to the lore dump that happens after the battle, but for now I'm just going to speculate with my immediate thoughts after the fact.
I was actually pleasantly surprised at the difficulty level, particularly after how underwhelming the Fiend fights were. I'd dare say it was the only fight in the whole game that was truly challenging - sure people died the odd time (mostly Glitz and Kaili), but we never felt in danger until that last fight.
The Curaja heals felt a touch cheap, but I wonder if they were part of a design - like is Chaos's AI designed to try and use magic first, but when it runs out, switch more primarily to Haste + Physicals. I'll have to dig into that more in the retrospective - it'd be cool if Chaos also had a magic pool that he ran out of. Then that in turn was why the actual deathblow came at a time when our damage output per turn was a lot lower, due to our firefighting.
While it sort of makes sense in context, the fact that we almost cease to be on completion leaves me with at best ambivalent feelings. I get why they went that way, but knowing some of the later games and their dalliances with time travel, I suspect this was a prevailing opinion, particularly given our Warriors of Light don't get a moment of triumph. In fact if I'm reading it right, they might cease to get moments altogether.