Progressive (ASI) Non-Renewal for Wildfire Risk

Hello,

I'm in Oregon and hoping to get some insight on receiving a non-renewal notice on my homeowners insurance from Progressive due to a wildfire risk score of 21 (out of 50). How is the wildfire risk score calculated? A wildfire risk map and assessment released by Oregon State University show my property as being in the low risk category, so receiving this notice of non-renewal is a little confusing.

Thank you for any insight you can provide.