SSA's DeNike says Port of Long Beach's extension of free time was unfair.
Terminals should be blamed for labor shortages on West Coast, union officials say.
Pacific Maritime Association says slowdown is crippling ports of Tacoma and Seattle.
Hueneme CEO says port could offer relief valve for congestion.
Consensus shows better growth than other parts of world.
Analysts from IHS Maritime & Trade predict continued increases in fatal incidents in both the shipping and passenger sectors.