Had no clue there were any mountain biking events at all. I wouldn't have bet on them showing any fencing at all, but even if they show the one bout you suggest it will be in pieces with far more focus on commentary attempting to make the audience understand how they should feel the drama. Takes a lot less commentary to simply show the event, as comprehensively as possible and the audience will actually engage in the competition. It's pretty sad when some middle age nobody who's never worked a day in broadcasting or in sports for that matter understands the rocket science of captivating the viewing audience better than the professionals who are paid $$ to presumably understand their business.
Yes, you are correct. Ibtihaj Muhammad is famous because she's the first US Muslim to wear a hijab in an Olympic event. She is also awesome, btw, and my kids love her.
But they will likely do more profiles on her then showing the actual competition. We will watch it though - either at home or I'm sure it'll be shown at our Salle (like a dojo but for fencing).