To be fair many Brits and VOSA would probably be foaming at the mouth and throwing their toys out of the pram for just daring to use an 80 tonner + doubles,let alone triples,outfit and showing that it works.Let alone driving them regularly at 100 kmh on a single carriageway road and ( most of the time given a decent driver) showing that works too.
The way I saw it she made the typical mistake of allowing the seperation distance to erode to dangerous levels,probably so as not to lose momentum considering the power to weight ratio,and then probably got caught out by not having sufficient advanced warning signs concerning the crossing ahead when she’d ‘eventually’ left herself with the choice between overtaking the car driver or running into the back of it.Then rather than admit all that on camera she tried to cover up her zb driving and having missed something as important as a level crossing with a train coming ,by blaming the car driver instead.