Bus lanes are a thing and this is built into a road. So not really an advantage. You add rails and switches to the system. Those need to be maintained as well. The prefictability is really a flaw. Busses can go anywhere with a road. Much more flexible.
So basically it can reverse, which can help, but also requires either two drivers or the driver to walk through the train.
What exactly makes this better then a bus?
Higher oil prices. The US has become an oil exporter after all. They also went after Venezuela and Russia for similar reasons.
The Iranian revolution hates monarchirs, so a lot of Arab monarchies like the Saudis or UAE love this. Trump loves those monarchies for plane reasons.
US arms industry sells weapons.
Iran supplied weapons to Yemen disrupting the Red Sea shipping.
Carbrain: Need big car to win accident!
Train:
This is not a proper tram, but really a battery bus on tram tracks. So low capacity, charging problems combined with fixed routes.