I believe (correct me if I am wrong) the FAA deems anything <80% a failure. The FAA approves the SkyWest training, ergo <80% = fail.
I struggled a bit with my SkyWest initial in 2006 on the CRJ coming from flight instruction. But I figured it out enough to get through it with a douche upgrade sim partner (whom I thought was a great guy). Make it happen...if you can't, maybe it is not for you.
I really believe Camielle had the hiring algo down pat in 2006. Now, they do not care who they hire. Make it or don't. It is all on you now. 98% of those failures probably would not have been hired 15 years ago.