It might because even if the company is doing well and hasn't laid off anyone, the DOL likely will take into account the local, regional, and national economies

It might because even if the company is doing well and hasn't laid off anyone, the DOL likely will take into account the local, regional, and national economies and question and request more extensive documentation regarding the company's good faith recruitment and the unavailability of US workers and/or simply not believe that there are no qualified US workers.