In D&D games there are certain things that give the games a D&D feel. One of those things is how modifiers are displayed in a roll.
Meaning If I am +2 on a wisdom check, the user would see the d20 roll + 2. In BG:III it's removing the modifier from the target number.
Yes, I know the math stays the same.
And traditionally the user would have the option to see all the rolls happening.
Just a thought.