There is another possiblility to all of this of course, that this band is now Fleetwood Mac, given that the Unleashed tour is over and there is no suggestion of a new album in sight. Perhaps Mick has decided to add a few new people to the band and the easiest way was just to turn the MFBB into Fleetwood Mac.
Actually, other than the absence of Mr McVie, I wouldn't be overly bothered by this...time moves on...