Baltimore isn’t even a major container port by U.S. standards. It’s reputation is built on handling imports AND exports of autos and heavy farming equipment. It also handles a lot of dry bulk cargo like coal and grain, if I remember my U.S. port statistics accurately.
My company imports plywood, OSB and lumber through the port of Baltimore.
This is because they are one of the few ports that have large indoor storage warehouses at the port.
All of that cargo will need to be diverted to a different port like Wilmington, Philly, Norfolk, Newark, New Haven, Charleston, Savannah, etc.
Costing more freight to get to its final destination.
This is a classic FORCE MAJURE. An act of God, out of our control.