I worked for the BBC for 32 years and retired a couple of years ago. I am utterly disgusted with them at the moment, however that is another thread.
The BBC will not allow Folk music on the TV for one simple reason. It is not visual.
I was filmed several times showing my work with Gypsy Wagons. I sang a few songs and about a quarter of one verse went out on air. That's how it is and will be I'm afraid.