Well I did not know what people were talking about with Wizzard and See My Baby Jive, so I thought I would google it. Found youtube video. It was dire... I think my ears are bleeding.

Let us not come down too hard on recording and broadcast entertainment industries. Though they have homogenised folk music they have also preserved some of it. They could be the way to reviving what is fading away.
BBC frequents the Essex Records Office to research all kinds of material. Some of what they research may lead them using to local folk traditions in a project.