Or maybe: "they understood it". When you don't get questions about a certain issue in your presentation does not mean that you should pull that part of the story. It is most likely that the audience understands your point and is ready to move on.
If it works, then there is no reason to spend a lot of time/slides on something. But leaving that part of the story out, creates a deck with only your contentious issues left without the glue that stitches everything together.
Image via WikiPedia
SlideMagic: a platform for magical presentations. Free student plan available.