Lack of urgency, when hungry
I agree the piglets were planted on the women's island.
On the episode I saw last night the women were at dehydration emergency level. Down to just one canister for water; the second one reeked with putrid leftover fish(?). So when it looked like the women were going to be removed from the island, then all of a sudden the canister smelled like new. The extra water saved them. Which means the show would continue.
I like the premise of the show, but I do feel that since they have a lifeline to emergency services, the participants don't really take the situation as seriously, as they should.