Guess I'll need to brush up, been awhile since I read 5E stuff. Maybe I would just like to see what the natural roll was and then have the modifers added, perhaps that is just a me thing though, more like how it would work on tabletop.
No, it's not just you, I would like to see it used as well. Keep the DC the same, and instead show me what I rolled and then add my modifiers/proficiencies as an animation. As it currently is, where you have to mouse over the Target DC to see why it was set to that, it's just not satisfying and for me, seems unnecessary and confusing.