That extra credits video is stupid, their argument is no different from Mortal Kombat and Doom make players killers in the 90s and Jack Thompsons crap about gta in the 00's.
No, smashing shit up and blowing up cars in GTA doesn't "have to mean something". As for WW2 the setting is just window dressing for the gameplay/graphics. I mean go ahead and try and lobby to force people to watch Schindlers List before they can make their next WW2 fps game online account if it makes you feel like your making a difference.