If you contract with a trucking company to carry a load to somewhere else, and their truck with your load, hits a bridge abutment and knocks the bridge down, are you responsible for the damages.
Per the Chicago Tribune: “Dali’s owner, Singaporean firm Grace Ocean Pte. Ltd., and manager, Synergy Marine Group”. So, start there.
And, taking your point that Maersk is but a cartage customer and has no financial liability is concerning.
Of course there is also this, from Business Insider: “Owner of ship that crashed into Baltimore bridge will likely try to invoke 1851 law used to cap damages after Titanic disaster”