The better to get 'em all when we nuke said island!

Well, my perspective is, every time my fellow alum Skins throws a primitive off the island, the world of anthropology loses potential information and insight.
The fewer the primitives, the less the anthropological specimens.
And ditto for when Skins's island temporarily goes down, gets submerged; more opportunities lost to enrich ourselves with further anthropological study.
I would just as soon Skins's island never goes down, and primitives never get banished.