Magellan himself was killed, he didn't complete the journey in the first place. So, the title already didn't make sense (clickbait) What most mean when the say

Magellan himself was killed, he didn't complete the journey in the first place. So, the title already didn't make sense (clickbait) What most mean when the say Magellan did that, they mean his project/vision/mission to sail around the world. In that spirit everything remains the same, even with this additional information.