Decisions...Consequences

A friend pointed out something curious about the Pikki flashbacks on the Island. In at least two cases, Paulo could very well have saved lives if he had decided differently. If, for example, he had climbed up to the Beechcraft, Boone might never have fallen to his death. Similarly, if Paulo had told people what he saw and overheard inside Pearl, Michael might never have shot Ana Lucia.

Is this simply further sign that certain events on the Island are fated? Could Pikki's -- or at least Paulo's -- terrible demise have been some judgment of the Island for failing to intervene? Not quite sure what to make of this, but I thought it was interesting...