99% Limiter will spoil and company not repairing.
Your problem is with enforcement.

And why is limiter and not GPS tracking by company or even JPJ ?

Speed limiter got use meh? Current heavy vehicle commerical register is
70/80
80/90

If bus traveling 80km/h top speed at that corner lppl many will die too if flip over

Auto braking system/adas/adaptive cruise control/esp/ is more important than speed limiter

MoT should discuss safety features what options available for commerical truck/bus from company like Volvo/scania then only implement and make it compulsory safety equipment needed to be heavy vehicle operator.

Light vehicle travel 50km/h if hit trailer half roof already missing

Conclusion speed limiter not useful at all

Maybe long distance bus need to change it into low entry like city bus type at least is not as tall as current long distance bus at least can prevent and reduce the chance to flip.