PN - not necessarily - had the Pz IV been an Ausf F2, a "special", (or earlier) and the British helmet been in the desert then fair enough! As it was, an obvious CGI of a tank that came into being in 1943 and would not have faced the British until later in the year (and even then, not painted grey) was used to demonstrate Britain's low ebb in 1941. A symbolic moment but not a plausible one.
Perhaps they used a newspaper reporter from the Guardian to identify the equipment? I was only doing for tanks what countless contributors have done for aircraft on previous threads.