Some will be harsher with it than I, I quite liked this game. The villains are pretty bad, your characters forgive high treason like it's a minor slight and the anime shenanigans pervasive in everything, including the clothes, feels a bit too much to me. But the scenario was pretty secondary to me and still enjoyable overall. I preferred the small missions that deepen the background of the tertiary characters.

So yes, you could save-scum pretty much every turn to get an optimal outcome. If you hate fun! I had a good time going into battles without having infinite second chances. The RNG is often pretty bad, but it's the same for the enemies. And a lot of battles have a midway surprise, that will make a major mess of your plans and if you play without even knowing what awaits you, you have to improvise, adapt and overcome. And that's all the fun.