I figured they all do it. We are always culling through photos at church events and to find ethnically / gender/ age diverse photos to be displayed. Look at any school’s website and you will always find diverse looking photos, even if the school is predominantly, say white Irish Catholic.
I imagine the demographic staging is even worse in political campaigns, repub & dem.
Not a newsworthy item IMHO.
I've taken to noting this practice particularly, in order to resist the brainwashing effect of uncriticized mental input. Try it. See how often you see a normal white guy featured in a billboard picture, for instance.