Giving the appearance that Trump was in Florida was part of the cover for his trip - not exceptional - so making an error on his location was excusable. What was NOT excusable was politicizing his supposedly staying in Florida. And getting egg all over the publication's and editor's "faces".
Frankly, given how normal using cover would be for such a holiday visit, both the "reporter" and the editor(s) who approved the story should have known to be careful. As for the sour-grapers harping on this being Trump's first T'giving visit to Afghanistan, regular visits would be a pattern around which terrorists could plan, i.e., would be foolish.