Because it was dirt cheap. The whole point of the easement is to limit how the land can be used, which lowers the value of the land, which means the buyer can get it cheap, but the buyer has to abide by the easement. And she hasn't.
This has been going on for a long time and she has already lost once in court. Plus, the county is on her for zoning infractions, such as no public bathrooms, inadequate parking, required permits needed to operate the business.
You could spend a couple of hours with a google search looking at the history of this dispute.
Who said that the buyer in this case did not abide by the easement? Lesson 1: so-called “environmental” departments lie. Lesson 2: activist judges side by the government liars.