There’s many reasons why a companies choose to do randomized and/or non randomized.  This below, sounds like a Kalytera to me.  But I could be wrong. 

 
3. Nonrandomized studies are usually less expensive. An advantage of nonrandomized studies is that they usually cost less per subject and may not require the extensive planning and control that are needed for randomized studies. This makes nonrandomized studies particularly attractive in the early stages of any research effort. Preliminary estimates of the relative importance of many background variables and their variation may be developed at a rea- sonable cost. These data may be important in designing future randomized ex- periments.