Not to mention that dropping an anchor won’t immediately stop a canoe, not to mention a high rise on its side. I don’t know much about marine piloting, but I know that there’s a pretty complicated formula for anchor drop and how much line is needed to secure a stationary ship. Factor in that this ship was incredibly large, moving at about 7 knots, tides, wind, current, and proximity to the truss makes me wonder if dropping anchors would have done (or did) much. I do, however, wonder if tugs on either side could have made a difference. But hindsight is 20/20.