A lot of the removed almond tree wood is sold to people like me up in the Sierras where we heat with it in the winter. Almond has significantly more energy per unit of volume that most other species of trees in our area. I don't like the smell of burning almond wood. I bet peach wood smells a lot better, but it would take a lot more space to store the same energy.
(Source: my relatives in the Sac. Valley don’t heat with almond wood anymore.)
Selling it as fuel is maybe some added revenue in the short term but really just doesn't make sense. Now if you were getting a premium (lumber, specialty hardwood, etc), then processing and selling could make sense
Another casualty of what happens during the shift from independent, family-run farms that often sold to grower's cooperatives to much larger, scaled-up operations that focus on wringing every last dollar out of efficiency and standardisation.