So it takes a lengthy investigation to figure out if an idiot that almost got killed has learned from their mistake, but they know instantly that horns would have solved it? Sorry, still sounds knee-jerk to me...
I'm sure someone has done a safety systems/ human factors analysis of what makes drivers stop (or not) at level crossings. I can only offer a personal observation - the whistle of an approaching train greatly increases the probability of a driver stopping at a crossing even when there are lights bells and gates installed.
Applying the classic "swiss cheese" model of safety engineering - whistles are a fairly effective barrier to reduce probability of an event. They also have traditional legal and regulatory status, such that whistling is the norm and not whistling is the rare exception allowed only after considerable study and red tape. So yes, the safe and normal course of action after an incident is to double down on whistling.
The problem in this case is that a) the rail line has morphed from a sleepy branch line (pre 1980s) to a high frequency, heavy rail infrastructure and b) the surrounding urban area has become more dense and more prosperous and c) the track layout is particularly problemmatic - multiple crossings in a short area with a curve and poor sightlines. Whistling solves none of that and aggravates the human environment.
So I agree that the more effective solution is to grade separate. I suspect there will be considerable resistance to that idea, as it will be costly and the urban environment will be altered.
As to the operator deficiencies in this one incident, which are hinted at but not really established, I will observe that it's ridiculously easy to become a heavy equipment operator in this Province, And many heavy equipment operators have big gaps in their situational awareness while running big machines. But let's not "blame" or downgrade our concern for the life and safety of this operator.... again, I would apply Vision Zero thinking.....we want all cyclists and pedestrians to be safe, even where they do dumb things.
- Paul