I mostly agree with you and i'd put NAU at >90% chance to win. But to play devils advocate for fun...
Is Keira Moore going to run? She hasn't run since that race at Nuttycombe race. If she doesn't run or isn't 100%, are the other options to be their 5th really that much better than Grace Hartman? Ruby Smee only beat her by 2 spots at Nuttycombe and Maisie Grice and Maggi Congdon were over 10+ seconds back of Hartman.
And Aliandrea Upshaw is a bit of a question mark for me still as to how she'll perform. She was lights out a Nuttycombe only 7 seconds back of Larkin, but then she was 25 seconds back of Larkin at regionals. She was 146th at Nationals last year.
(Yes Tyynismaa is obviously a bigger question mark but this is just devil's advocate here).