Sorry to hear about your delay in residency.
Referring to my previous statement: I say that only because I met with the Dean of Admission for the Idaho WWAMI back in June (note: this was last year's dean), and she told me that after secondaries are reviewed, about 50-60% get interview invites. Last year, they had around 140 Idaho applicants and gave out around 75 invites just out of her memory. Since I believe that many interview invites were given from Sept to Nov, I just assumed that many (maybe less than majority) had been turned down by that time. Given that the secondary deadline is later than Nov, my statement could also be wrong. Take it for what you will.
Also, I have talked to a few Idaho applicants from previous years (some who got in, some who didn't). One girl was denied a UW interview with a 4.0 in Biomedical Engineering, but had a sub 30 MCAT. She did get into Utah, but it still surprises me she wasn't offered an interview to the WWAMI. This is only n=1, but still suggests this is a very holistic review [or random 😕] and they simply can't offer interviews to every regional applicant.
Okay, I'm done over-analyzing this process, but I wish you the very best with that interview invite 👍