Why a Type 45 destroyer was called a battleship

Why did a British newspaper call the Type 45 destroyer a battleship?

It repeated reporting that treated warship and battleship as interchangeable, without enough specialist editing to correct the classification.

One publication reproduced an article that had already called the Type 45 a battleship. Some nonspecialists use battleship as a generic word for any warship, even though the Type 45 is a destroyer. Copying and limited editorial time can then preserve the error across outlets. Precise ship classifications matter when readers use general reporting to understand fleet structure.