As I think has been mentioned multiple times in this thread, UWSOM seems to be indifferent about stats beyond whatever their threshold is for "good enough" (i.e. you are academically qualified or you aren't, period, and that's as far as stats weigh into the decision to request a secondary).
@BABSstudent wrote either in this thread or it may have been last year's thread that UWSOM really thoroughly reads your primary application for screening before requesting secondaries. A lot of other schools will send the secondary regardless of your primary, and so you get those secondary essays as a way to add a more personal narrative to your application; at UWSOM, it seems their bigger screen is pre-secondary, so all they have to go on is the narrative in your primary. Is it possible that your activity descriptions may have been lackluster or impersonal? Maybe there is a subtle red flag in your personal statement that is overlooked or explained away in secondary essays, but when the primary application has to stand on its own, there is an issue? Or (this is the most frightening possibility to me), maybe a letter-writer has either accidentally or purposefully torpedoed your application with a lukewarm or negative letter (although I don't know if UWSOM considers letters pre-secondary-- I designated my letter at the time of my primary)?
I don't know your personal situation, but being in the middle of this process as well, I can understand how immensely frustrating it feels to be rejected from a school about which you feel passionately, but DOUBLY SO when it is apparently arbitrary or for a seemingly secret reason, so I hope that might clarify a little.
