If it's anything like #5 at Cliff, there will be pieces of gravel on the pad itself. But it is only a mild annoyance compared to a bunch of mud every time it rains. Anyway, it looks real nice in that video.
Not only that, but the they also used the gravel to make the Teepads level with the ground. Some had pretty big drops on multiple sides.
Gravel isn't as annoying as a broken ankle.