Land is a poor candidate, she attended a Chamber of Commerce event and failed at answering questions, so much so, that the Chamber endorsed Peters. Not that this really made much of a difference, as Peters was always going to pull away, but Land proving to be a poor candidate doesn't support the notion that this race will get closer later on, she just doesn't have what it takes to pull that off.
To those of us who know better, the "Terri Lynn Land is a Formidable Candidate" talk has always been hilarious. To be fair, Nate Silver was guilty of this. As a Michigan native, he should know better.