This is unfortunately how the ghost reviews work - they don’t haunt you based on the grammar point, but based on the sentence you got wrong. The reason for this is that within various grammar points, there are different conjugations, etc. and unfortunately there will be certain grammar points (such as むしろ) which will always be exactly the same answer regardless of the sentence. I suppose at least if you get the first one wrong, you know that the grammar point will definitely be back to haunt you in one way or another.
Furthermore, you could set your ghosts to minimal, meaning you won’t see it as much.