As a simple experiment I suggest you watch the clip from the show with sound on then rewind and watch it with sound off. When you watch the below clip with sound off you will see a bunch of people cooking and walking around at a leisurely pace (or sometimes in a state of panic as time runs out). When you watch it with sound on, you will notice that the Michael Bay type music cues and totally over the top dramatic stings used as a counterpoint to peoplewho are essentially cooking and this creates a sense of tension and drama that never fully releases until someone is dismissed from the competition for not being a good...um...cook or star (I worked on this show and still don't understand what the point of the program is.)?
The point is that while many people just throw any sort of musical junk into their timelines when creating TV, the whole genre of reality TV relies on strong musical choices that bring to the forefront what amateur actors, contestants and or regular people have a hard time communicating in this genre.