re: likely hood of container ship sabotage has to be pretty high

I work at a port, I'm 63 and started at 17. I've seen ships lose their engines, rudder, radar, etc. shite happens, this MIGHT be some kind of attck but this happens more than one might think, not every day but it is not unheard of. I've seen ships smash into our dock due to mechanical malfunctions AND/OR human error.
At this point in time I think it is just a freak accident, had this happened several minutes earlier or even two minutes later the bridge would still be standing. What I can't understand is why the bridge piers were not not protected by bulwarks to keep a ship from hitting them because this is a VERY VERY busy port terminal complex.
There are now a half dozen ships trapped inside of this area NOT counting the MV Dali. Plus it appears from my Marine Traffic app there are 11 ships waiting or were waiting to get in there.