Taney was not an admirable person. The Dred Scott decision was one of the worst that the Supreme Court handed down. But striking his name from a ship just removes an opportunity to discuss the history of naming ships occasionally after less than admirable people. They should have put up a sign describing who Taney was and leave it at that. We should not erase history we should remember it both good and bad.
While all that is true, the ship was not named after Taney because he was Chief Justice. It was named for him because he was briefly Secretary of the Treasury. Leave the history of the man to that for the purposes of this ship.