Interesting ClassNK indicates 5 x 20,850 kVA. 16,680 kW including the EDG.
NTSB report mentions in kW 2 x 4000 and 2 x 4400. 16,800kW. So EDG is rated at minus (-) 120kW.
Wiki indicates 2 x 3840 and 2 x 4400. Total 16,480 kW. So EDG is 200 kW.
Datasets are suspect as I expect the EDG to be around 350 to 450 kW range. This would include the drive motor for the emerg fire pump as well. No reason to believe that they would have an independent diesel driven emerg fire pump.