Isn't it kinda obvious? More blood/gore/violence == higher age rating == less target auditory == less money.
That's certainly a good point; maybe add a /s
But I'd hate to think all creative decisions are business driven. Fortunately, I don't think that's the case you can still have "fun" death sequences without raising the age limit. The point... the game doesn't even ragdoll the enemies or have delayed corpse decay. I think we've discussed this before. My conclusion is isn't a purely technical limitation-- its just not important.
