I'm not saying there's no wiggle room at all for balancing, but they really need to be careful. The line the between Lucky charm being appealing and lucky charm being not worth taking at all is very thin.
It was mostly worthless in the first game, and now that it actually has some value people think it should be be nerfed. The problem is, even as good as it is, it's not necessary. Barter alone gets you enough money to get the things you need in the game and if you add thievery to that, which most people do for other practical reasons, money and gear is mostly a non-issue.
Factor in that Lucky Charm and Persuasion, another valuable skill, are both competing for space on your party leader in an optimal setup (at least in single player). Both are skills generally preferred on the party leader, because you never know when a persuasion check dialogue is going to trigger, and having to switch to another party member every time you want to open a container is going to be tedious for most players. Frankly, people willing to micromanage the game that way deserve whatever benefit they derive from it. I'm certainly not.
So in a quality of life setup, people are generally choosing Lucky charm over efficient placement of persuasion. It *needs* to have an equivalent value with that other skill, that also makes the game considerably easier when you invest in it.
