I don't believe it does place the blame fully on the captain, where did you see that?
The report conclusions mention several events and dozens of contributing factors.
If you want to think in terms of blame, which is not helpful to avoid future accidents nor for nurturing a safety culture, the report "blames" the ship owner, captain, crew, National Hurricane Center and the coast guard...
Some actions of the captain were a contributing factor, notably bridge resource management/communication.
"Coast Guard investigators virtually placed all of the blame on Michael Davidson, the El Faro's captain. Davidson underestimated the strength of the storm and the ship's ability to ride it out. He did not take enough measures to evade the storm, even though most of his crew raised concerns about the increase in strength of the storm. Investigators had stated that if Davidson had survived the storm, his actions would have been grounds for the Coast Guard to revoke his captain's license."
The report conclusions mention several events and dozens of contributing factors.
If you want to think in terms of blame, which is not helpful to avoid future accidents nor for nurturing a safety culture, the report "blames" the ship owner, captain, crew, National Hurricane Center and the coast guard...
Some actions of the captain were a contributing factor, notably bridge resource management/communication.