Lots and lots of titles that AF did not wish to pay to licensing for were not attempted due to reasons other than unwilling artist or manager, or tapes not found or tapes found but were found to be in bad shape (which were sometimes the reasons).
A couple of big reasons for not providing desirable titles was simply a too recent reissue on other label (recent can be 5 to 10 years prior), or their budget was tapped out, and it came down to choosing one over the other.
I was told that in general MFSL does not get a very long (if any) exclusive window to market a title, and that the label does not lock it up from others to reissue. It a friendly curtesy that reissue labels stay away from a title that was just out on another label, and choose something else. It does appear to me that MFSL beat AF to so many great audiophile favorites that also had the quad masters as well as the evergreen stereo tapes in the vaults, that I got an ill feeling just reading about new releases from the MFSL label.
But as I noted in another thread, the two big hurdles, the biggest hurdles (outside of disapproving artist or manager), are pressings costs (reissue label fears it might not move enough units), and licensing approval - red tape / time involved to get it to the manufacturing stage. With the streaming of quad masters that come to Apple directly from Sony, those two issues are about moot.
So while I expect some lesser selling stuff to show up that was too risky for AF or DV like Pussy Cats, Charlie Pride, and George and Tammy, and Mac Davis, some heavy hitters platinum albums should show up - and MFSL's recent history is not going to be considered at all. Just like Sony Japan is rolling out Santana SACDs on it 7" series, and it not considering at all what MFSL has in the offering, or recently has offered.
I like it that the streaming world is not giving any consideration to pressing costs, sales potential, contractual red tape, or the recent reissues of a given release on some other label. I was most shocked at Jeff Beck Wired showing up not that long after a Sony Japanese 7" series SACD was issued. This tells me that just about anything is possible.
All bets are off now. Sony and Apple know nothing about the term we call "quad-blocked" (laugh).