Not sure the reasons are "unknown". Simply said, there WAS a market for such archive stuff from a major label's standpoint some years ago, when GB was asked by Sony to investigate Columbia's Mahavishnu vaults, but in the meantime, for reasons well known, said market disappeared.
Surely, smaller labels would be very happy to deal with that treasure trove and would find this financially rewarding, but sadly this isn't what seems to be happening with the release discussed here...
Bookmarks