I just spoke with a rep from Nuvont who clarified what’s going on with them. The short version is that I got only half the story and Nuvont is doing just fine.
The terminal adapter surplus was from a canceled order, but it was canceled because the product had been ordered but not delivered. Both Nuvont and the supplier came to mututally-agreeable terms to cancel and refund the undelivered shipment. Apparently the supplier then selling the leftovers either didn’t get the story straight or injected some of their own conjecture into the conversation.
Nuvont also said that they have found themselves unable to offer phone service in Tremonton just yet, but they still offer phone service in other markets. The problem is with getting available numbers from Frontier Communications, the local incumbent. This is in addition to Frontier’s refusal to port numbers for existing customers.
So there you have it. Nuvont is doing just fine.