Regrettably, passing the interview process (both the sim and medical) is not an automatic job offer.
I'm not sure about the concept of passing with higher or lesser degree on the sim interview, for what I have experienced here the Japanese consider a pass and a fail as such and there aren't degrees of one or the other, this might be the contract individual way of saying "
I don't know why you haven't been offered a position"
Out of the folks that have passed the interview process they will take their "pick of the litter" if you will, based on previous experience and fill their classes with those individual's. One thing is for sure, with all these airlines closing their doors there are quite a bit of experienced drivers looking for work