"Trying to get someone else to do the killing but telling them how to prepare the carcasses" is basically a perfect analogy for Sandra's style of playing Survivor.
Let's break this scene down. You have everyone gung-ho about catching and eating a goat, with JT (a farmer) and Malcolm leading the charge. Once they're caught, it seems like everyone has a change of heart about eating the mama and baby. I assume JT's real reason for switching was that he didn't want to be the one who actually killed one or both of the animals --- again, the guy worked on a cattle ranch, so obviously he can't be that worried about killing animals.
Sandra, meanwhile, was clearly the biggest "eat 'em all" proponent, but look how she handled that. They discussed the situation, had a vote, came to a compromise and she didn't make a big deal about it after the goats were released. This show seems to go out of its way to try to present Sandra as a "villain" when she's ultimately just pragmatic about how Survivor works. If she has to cast a vote, hey, anyone but her. If she sees food apparently walking freely around camp, hey, why not eat it? After 33 seasons of fish, pigs, chickens and god knows what else being eaten on this show, goats are fair game.
Unless, of course, that Rob Cesternino tidbit is true, which makes me think the goats were really just there for dramatic effect. After all, the Survivor personnel have that entire section of jungle cordoned off. I'm guessing goats couldn't wander in there unless the producers wanted them in there, probably in order to try and create more 'Tai befriends animals' stories.