“Unless there are the requisite halachic justifications to insist on a get and the beis din orders him to give one”
We have to accept rulings of beit din. In this case, the published reports are that it ruled that she was entitled to a get and he was ordered to give her one. In such cases, an otherwise coerced get is not considered to be coerced and she would truly be free to remarry after the get is given.