I am very familiar with that case, I have a few friends that fly there regularly. They are currently working an agreement with the FAA to keep the field open. The Basin has been on the radar quite frequently the past few years because it is one of the only fields that does not require AMA. According to the club members that I talk to on a regular basis, it is the non AMA members that have been creating the problems for the site.
However, keep things in perspective, that is one field out of over 2,500. I would never claim that all AMA members operate in a perfectly safe manner all the time, as a whole however members have a great safety record.