I agree with your post but didn’t the creator of Netscape navigator (Jim Clark?) manage to control a sailing ship remotely.Of course they will look at terrorism, but there has to be some mechanism by which the attack could take place and you've got nothing but overexcited twitter posts. Still, let's humor you for a bit, and think about how the ship could have hit the bridge because of a terrorist attack.
Bomb in the engine room is a possibility but there would be explosive residue all over the place and the investigators would have found it as they combed through the mess. Also not very precise as attacks go, as you wouldn't know which way the ship would turn afterwards. Could just has easily have turned away from the bridge.
Crew overpowered and forced to change course? No evidence of that, the crew is fine and nothing on the bridge voice recorder.
So what else have you got? Ah yes, a cyber attack. Sorry, A CYBER ATTACK!!!!!! This is nonsense because ships don't have controls that can change their course remotely. The people that do the driving need to see where they're going, which is why the controls are on the bridge rather than someone's laptop.
Terrorist idea goes downhill fast from there, and I have to say that the concept of "remote towing" a ship weighing thousands of tons with a radio signal is one of the dumbest things I've heard in a while. Jewish space lasers are sober and accepted technology compared to that.
Remote towing is straight from a bmovie.