Programs are just an organization of the exercises, not limited to compound or isolation movements.
If you're a seasoned bodybuilder, strict programming CAN be less important because you're basically a tissue assassin throwing whatever you can at your body to stimulate the muscle, and that happens to include more isolation exercises for individual muscle groups than other people and athletes need. You'd also be experienced enough at that point to know what to do in the gym.
For the vast majority of people, putting the emphasis on compound exercises is a better way to train (although isolation exercises should still be included at least sometimes) and a good program will help ensure you get enough recovery from these movements.
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