personally I think that is lame. Not being able to say words like death, die, or kill in an action cartoon is pretty prudish if you ask me. Heck even the old toon that isn't even as serious as the New could say words like kill, dead and die. Remeber Rocksteady's imfamous line:
"Drink blazing electric death toitles!" right when he is shooting at them.
But the new toon has to content it self to saying "destruction" and "perish" when talking about death or making threats.