Les from Hull,Actually, what you are saying about a paucity of facts beyond those presented here is true.
What is necessary to know the facts is some considerable, tedious research. It may be possible to find out who originally owned masters, contracts, and copyrights (contracts are sold along with product and copyright in these liquidator deals)now presumed to be owned by Celtic Music/Dave Bulmer, et al.
It may be possible to find out if and when anyone ever filed for remedies and/or breaches, that sort of thing.
And someone could actually try to interview Dave Bulmer about it without being antagonistic and hostile.
I think everyone agrees it would be nice to know the truth. But getting at the truth is usually a lot more work than most people are willing to go through to find it.