1. The number of ingredients in something does not directly indicate how (un)healthy it is. The fact that Larabar contains 2-3 ingredients says nothing about its nutritional value.
2. In fact, many people would not consider Larabar to be a "processed" food to begin with because it literally is just 2-3 fruits and nuts mashed together. You could make something very similar in your own kitchen. The way you're speaking makes it sound like "processed" food is anything that is cooked or combined in some way. That is not how people use the word IME.
3. Have you looked at the sugar content of Larabar? It's not low, nor would I consider it healthy or wholesome. They likely chose dates specifically because of their extremely high sugar content so that they could pretend they are healthy while actually including unhealthy amounts of sugar in their product under the guise of dates.