In the past, the 1-11 sim was used to give everyone a level playing field during their assessments. However, that was based upon the fact that no specific type rating was required and the successful applicant would be given a full type rating on his/her new type.
It does seem a bit of a waste of time though if we want A320 rated people who have been flying the jet for x years already. All they need, after the interviews, should be a couple of sim rides to get used to different SOPs.