I see side and minigame fatique kicks in here and there. You can ignore them, however, a lot of good stuff is behind them. But the game is doable without doing all those. Or check what rewards you would like, only to these.
This is my gripe, story stuff behind minigames, that isn't good game design.
Also the mini games, for example, the card game, I have a deck unmodified since before half way, I just restart and RNG does its thing.
The same is this last one, Gambits, sometimes I can't win on easy, others win on hard, just a matter of luck and it has these systems and subsystems with a bunch of tutorials, seems to much, they should be more fun and a little less trial and error.
I agree that the game is doable with just the story, but all these things still make up the whole game, content is content.
It may seem like a lot of bitching on my part, but it's just because I like the game as a whole, the combat is very good, addictive, fun and the music, it's just amazing.
It's a positive critique, if the 3rd solves these things, for me it would truly be a masterpiece.