On this particular task, time was of the essence. If some local people saw the news, then Jackson's subordinates should also be on the lookout.
Since the area where the island that the two occupied was mostly remote, going by boat to scout the area would be hard. Who knew if some other people were hiding in the shadows to watch out for them?
Cefei didn't want to lose some of his people. But one thing was sure, April was indeed on that Island. The news was real. Just that, what was the current situation on the Island? If the fisherman's words were true, why is April acting like an infatuated person to her kidnapper?