One word popped out at me. Downgraded. I would think that an animal no longer threatened would be upgraded. After all, when a patient in a hospital goes from Critical to Serious, it is an upgrade is it not? What does this tell us? That in the eyes of environmentalists the only good animal (one that can be used as a political football) is an endangered animal.
As for manatee meat, if we could find a market out there for it I can guarantee that the beasts would no longer be endangered, threatened, or otherwise in short supply.
Bingo. The honest environmentalists should be celebrating this news.