Gammon wrote this way back in 1984. It is one of several pieces which explain how Lloyd was influenced by AL Morton's Marxist history of Britain.

Gammon wouldn't have had any colleagues left at his job if the ones influenced by Marxist history all went. It's a standard item in any academic's toolbox. I suspect you are taking this out of context.

Lloyd never made any secret of his Marxism and his work is the better for it.