Molly Gray had support from Shumlin and Kunin and ran kind of a rural-centric campaign, so it's not really surprising that she was strong outside Chittenden county. Apparently some people think she's being groomed to replace Peter Welch or Leahy/Sanders when the time comes, as Vermont has never sent a woman to congress.
It's kind of ironic that Vermont of all places is one of those states. Waiting out her time as LG until one of the Senate seats opens up seems like a good call for her. Vermont LG's seem to do pretty well when seeking higher office, generally.
Why is that ironic? Vermont only ever had the single seat and two Senators, and has never been a swing state that leads to incumbents losing.