I think the rules were though that as long as the nest was supervised, then they couldnt steal the egg. So when the orange team had their egg stolen, the guy had completely wandered away from the nest and left it unsupervised.
But when kerry kicked off about her egg being stolen, she was literally right next to the nest, so it was still supervised and therefore egg was not allowed to be stolen.
And I hate Kerry so im surprising myself by defending her with this one...!