Having rented stuff to movie productions the set dec isn't too concerned with authenticity. They expect the general audience to focus on the plot, not count buttons.
I do think that reenactors could step it up a notch to accurately portray the theatre of operation. It amuses me to see a jeep loaded down with every imaginable bit of kit making it look like a mobile warehouse.
For myself I have stopped reenacting a Canadian WW2 signaller as I now look more like dad's army.
Maybe I should depict a French civilian wandering around with my B2 spy set.