indeed.
gore isn't that necesary. less is more, and good acting could have more than made up for the lack of it. in AvP and AvP:R, no one twiched, screamed, they didn't roll around in pain, they just moaned like they were taking a hard shit. didn't even got red faces. when Kane gave birth you could see way more than that, the pain felt real, like if it was happening.
guess the only way to film a good chest bursting with bad actors is to use tasers...