Revealing mistake: During the attack of the Global Sedition on the space station at the beginning of the film, several objects can be seen with dark grey boxes around them - CGI artifacts. One clear time is when Ranger 1 is saying "Damn, can't shake him". (00:02:35)
Revealing mistake: When Penny and Blart are reunited at the end, the animators didn't put the creature where Penny is looking. She also tries to lift it onto her shoulder, but it is nowhere near her hand.
Answer: He meant (as he says shortly after) that the spiders on the Proteus (that infected Smith) eat their dead/wounded, so when spider Smith's egg-sack is ruptured, the babies eat him.
Xofer