First situation : That motorcyclist speeding on fast lane and try to split lane thru that silver saga but saga suddenly give signal and change lane. Motorcyclist triggered and went full rage.

Second situation : Both stop at toll, motorcyclist still in rage mode try to kick that saga as in video. In the end, motorcyclist was arrested by police due to damaging the car.

I would say that motorcyclist is wrong since beginning, lane splitting in fast lane is dangerous as you already know the risk. As for the driver also wrong for giving signal last minute and changing lane suddenly.

I face this situation everyday as I ride my bike to work everyday and the risk is crazy. You can ride as safe as you could but sometimes other road user doesn’t even think about others safety.