Errol is primarily a director of investigative documentaries examining, authorities and eccentrics, but not limited to. He is perhaps best known for his 1988 documentary The Thin Blue Line, commonly cited as the most influential documentaries ever made. He'd contacted Winterhouse to design an identity for him that matched his editorial style of film making.
Given that Morris's documentary style is rather matter of fact, this seemed like the obvous route to go when creating his identity system. Direct and to the point each piece of collateral in this system was created to reflect the object it was to be used on.
Back when this was created VHS was still a popular way of transporting footage.