You wrote exactly my feelings for this game, better than I probably could, everything was spot-on.
Especially the part about hidden information. I feel like just about everything is hidden: enemy stats during battle(all stats, including numeric health), damage preview, turn order, vague edicts with up and down arrows, vague skill descriptions...
This game is full of guessing. Nothing is certain because almost everything is hidden.
Who's gonna act first in battle? Guess.
Who's gonna act next? Guess.
How much damage you can do? Guess.
How much health enemies have? Guess.
How much effects buff and debuff skills have? Guess.
How much crit chance I or enemies have? Guess.
Edicts with up and down arrows, how much of an effect they have? Guess.
Current riot chances of each level? Guess.
Why did I just unlocked a passive that has negative effects? Guess.
There's also hidden mechanics only found by looking at the game's files, when I found this for the first time I said a few insults loudly to devs. I still find this unbelievable. They expect me to play this game lots of times while hiding gameplay mechanics from me. I'm glad I didn't buy it. I've probably spent 1/3 of my gameplay time digging through it's files to discover hidden mechanics and change values of some questionable design choices. Fuck that shit, seriously.