The band is bending over backwards to be nice to Stevie. They could have and should have called the album Fleetwood Mac. She chose not to participate. They did not want to piss her off to make it seem they kicked her out and recorded without her even though this was her decision. This really says a lot if you read between the lines. As someone else pointed out, the Say You Will album was called Fleetwood Mac even though Christine did not participate. It seems they are walking on eggshells