I finally made it to the end (let the power-leveling commence!), and have a few observations for anyone contemplating a balancing hack of this game:
--Everything becomes much more manageable once you get the Enhancer. TBH, there should really be some way to get this at the end of Motavia, as that would very much balance out the brutality of the robots. I mean, it's helpful on Dezoris too, but I think I'd have actually been able to fight some battles in the Dams if it was available, say, right after AMeDAS.
--Barring that, Covert Ocarinas can be used in this game EXCEPT the dams, compounding the difficulty of that portion of the game. I know I'm really harping on the end of Motavia here, but everything else has been so well balanced it just drives me nuts they couldn't come close to getting that part right.
--The speed tiers are REALLY noticeable, as none of the "casters" are particularly useful thanks to not being very quick. And since their techs are much less efficient than the original, Kain and Hugh are well nigh worthless by endgame (they're both at ~lvl 45 and are still under 100TP). Shir and Amy are pretty fast, so they're super effective as support staff, but I prefer Shir for her defense and Laconian Dagger. Anne is slow, but she has the best TP pool, so I keep her for emergencies.
I haven't used the item creation system yet (nor do I plan to), so I don't know if that can even out the usefulness of Kain and Hugh. It may be awhile before I finish this thing since I want to have a pretty high level party for the final fights, but I'm looking forward to it!