Again I'll ask the question that the above posters have conveniently not answered:
Name another artist who has not only screwed previous members out of royalties, but to the extend of removing them from re-issues
by replacing their playing with another musician, with the sole purpose of screwing them over?
Your telling that Ozzy didn't agreed to this, or had no part, and didn't 'sign' off on this?
One, he claims he didn't know. I have no reason to not believe him.
Two, to you this is a big deal. To me it's not. The musicians were paid.
Three, MANY bands have done this. Kiss, Def Leppard, Iron Maiden, Whitesnake, Tony Iommi, Little River Band, Journey, and Taylor Swift have all in one form or another re-recorded all or parts of songs with either the intent or by-product of removing people from their work. Whether it's "with the sole purpose of screwing" anyone over, I can't tell you, I'm not in their head. Certainly, Kiss re-recording Eric Carr's vocal over the music for "Beth" is if not for the purpose of screwing Peter Criss over, has the effect of doing so.
One: Eh, I'm not so sure about that. I think the jury's still out on that one. Regardless, for something like this, it's
his name on the band. Ultimately, the buck stops with him in terms of allowing it to happen or, at the very least, for making it right after the fact, which he had plenty of opportunity to do at several junctures.
Two: Not true at all. That was the point and why those other guys were so upset. They
didn't get paid.
Three: Largely irrelevant, and I'm not sure you are accurate on all counts there either. I have no knowledge of Def Lep doing that, and I have followed them for years. What are you specifically referring to? If you mean the remixes of Bringin on the Heartbreak and Me and My Wine on the 1984 High 'n' Dry reissue, that's not really the same thing. The original album was presented, in full, with the original musicians. The two remixes were bonus songs that were, in effect, new versions of the songs (in addition to adding Phil Collen on guitar instead of Pete Willis, they added synths and some other changes) that were given
in addition to the original versions, not in place of them. That's applies to oranges in terms of replacing the originals with a same version with different band members and/or retroactively removing bandmembers from the credits. Or were you referring to something else?
Not sure about many of the other examples you mention, with the exception of Kiss and Journey, and I'm not sure how either of those help your case. Both bands caught flak from the music community and fans for doing that, and both are pretty widely regarded as being douchbag moves to either "scrub the record" of prior bandmembers' involvement or replace prior bandmembers' contributions or both. In neither case is it something to be admired or that should give Ozzy a pass for allowing something similar. Rather, it just goes to show that he isn't the only jerk out there.