That was the model, largely because V-22 squadrons were replacing the CH-46E, those pilots had to go somewhere, and the earlier wisdom was that the V-22 was a helicopter. New trainees have their own training pipeline for powered lift. Pretty obsolete graphic, but it still is kind of a hybrid syllabus last I had a beer with a friend still instructing.
An article on flying the thing a couple years ago indicated that for mid-career people changing platforms fixed-wing pilots had an easier time transitioning into the machine than helicopter pilots.