I believe that the entire point of presenting the roll this way was to simplify it for the player and make it more intuitive. Judging by the number of times this confusion has come up though, it's safe to say that did not work.
Larian should offer the option to display the dice rolls in an advanced style, showing two dice when there is Advantage or Disadvantage, showing a d4 if Guidance is active, and showing the actual DC, and adding the modifier after the roll. (Then allowing Bardic Inspiration to be spent, if applicable.)
