In general, when a public radio operator has both NPR news and classical networks, the classical programming is mostly translators and lesser signals. If there are two signals covering the same area, the bigger of the two gets the news because that makes more money. That's the case in Vermont; just look at the coverage maps:
https://www.vpr.org/radio-stations-coverage-maps
There are more stations looking to find ways to shed their classical programming than add it in general. Stations that keep their programming usually come down to some combination of:
(a) sufficient financial support
(b) a community mandate (there would be a big political mess if they dropped it)
(c) other programming that might do better is airing somewhere else in the market.