If Boz leaving without so much as a "thank you" from Moz, or Alain leaving twice under dubious circumstances doesn't drive it home, nothing will - there was never a "real band."
Morrissey recruited rookie musicians because he liked their "aesthetic". To say that some of them were limited would be generous - some were dire and he was frequently embarrassed by that (eg. the Nick Kent and Allen Toussaint situations). He called the shots the whole time and when members fell out of line, they were gone.
They were hired hands wearing Doc Martens, and it's just the same now. I don't see why the new women in the band deserve such scorn and derision but we're getting misty-eyed over Spencer, who was almost infamously crap when he first started and didn't stay in the industry after he left - it's bizarre.
There has never been ONE musician who came even close to being an equal partner in the solo era. There has never been a truly standout musician, someone who could share the limelight. And that is by Morrissey's own design, he knows what happens - they have more power and more opportunities, they won't take orders and boom, they've gone.