Oh dear. Well, Robin of course knew Johnny and Morris and who wrote what so well, and would never have intended a misattribution, but sometimes our brains and mouths can get and stay out of sync - as in this case?
I just last week had to state on a discussion list that I had for over 50 years miscomprehended the sense of a line in Morris's 'Superintendent Barret' song of the Stane. Looks like Robin got stuck on repeatedly doing an introduction without listening to himself.
Can happen.
Ewan McVicar