They weren't evicted from Addu Atoll but they were certainly not able to stay on Gan overnight.
I don't know the facts for sure but I believe the Male Government insisted that the causeway linking Gan and Hiatdo (?) was removed so that the workers could either wade to work or row in a dhoni.
They recognised that the British presence could enrich the Addu natives to a greater extent than the rest of the archipelago and were keen that we did not contaminate them with goods that would be unsustainable when the British lease expired.
Whether the eviction was British or Male, I don't know, but evicted they were.