That has got to be one of the worst ways to go. And judging from the course of the Crystal, stupidity may have been the cause.
According to the course tracking, it wasn't stupidity. The person in command of the container ship purposely backtracked and then aimed for and rammed the Navy Ship, which was sitting still, and then left the scene of the crime.
I have tracked many hundreds of container ships in open waters, and I have never seen one do anything like that. They are efficient, which is the whole point of merchant shipping. If they change course, it's a few degrees at a time, except when entering port. If they need to wait for the tide or for their dock space to open up, they slow down, they don't circle. If I saw a container ship actually maneuver like that, I would wonder if it was evading attack or had been taken by pirates. This was the merchant captain/crew doing something very unusual.
As strange as the container ship's track is, I'm still amazed that they were able to ram a warship with gas turbine propulsion. The Fitz can go from zero to 30+ knots quicker and with more maneuverability than almost any other large ship in the water.