Oh dear, nothing like twisting the facts and airbrushing out people like Professor RV Jones and Constance Babbington -Smith et al, and quite how the V1 whose launch ramps were pointed at London could have stopped the invasion of Normandy god only knows.
Leaving RV Jones and Babbington Smith out was a mistake, but the map shown on the programme maded from the photos quite clearly showed that quite a number of the original 90+ V-1 launching ramps were aligned on the South coast ports, which would have had an effect on the invasion had the V-1 attacks started before D-Day. Forgot the role of the Mossies as well.