I normally agree that people perceive things differently. But, in this case, that is just wrong.
Their are innate characteristics to this family of adventurers, and one of those is that they are not "for hire killers" that is JUST NOT the Fantastic Four, never has been, ever....and never should be. To think differently in that respect, is to NOT respect the history of Marvel's first family. THEY ARE the family friendly comic, THEY ARE the hope, THEY ARE the quirky, THEY ARE the flawed, THEY ARE...who they are because they have built that on decades of a multitude of writers works that kept THOSE THINGS intact. Change the story arc, as far as I'm concerned, you can change the origin of their powers if you want, but DO NOT change the family friendly, hopeful, quirky, fun, flawed group that they are....if you want to do that...THEN CREATE YOUR OWN SUPERHERO MOVIE and leave this family out of it.