I was under the impression that having a pilot on board a vessel with a master and crew was to ensure the ship went pretty much where they directed it, in this case through the designated channel between the bridge piers. Since the power failure on board was the sole cause of the vessel failing to behave predictably, that comes down to its fitness to sail, which is the responsibility of the owners, no doubt delegated to the master.
After more than 40 years of doing its job to everyone's satisfaction, to suggest that the bridge design was wrong is unlikely to succeed in court. The designers of the WTC did not seem to be pilloried for failing to make the structures proof against a C21 aeroplane. This is much the same.