I have been that person on the platform, waiting for a train to come, fully intending to take my own life. It goes through my mind each and every time I stand on a station, and I am painfully aware of all that it entails. I have also attempted to take my own life, albeit not on the railway. I am still here only thanks to the kindness of strangers and incredible good fortune. I certainly don't dismiss any loss of life, nor the consequences for others involved in these incidents, 'glibly' or otherwise, and if you felt insulted, then I can only apologise because that was not my intention.
I feel so strongly about this in part precisely because of the experience I have had. But there is an important distinction to make. These trespassers are not people who are suffering from mental ill health and attempting to use the railway as a means of ending their own lives. They are not the same as the young victim in the tragic incident you experienced, nor are they the same as me when I was in that horrific place myself. A lot, quite rightly, is being done to help people who find themselves in the terrible position of feeling they have no alternative but to attempt suicide, and much more could (and should) be, but that is a different discussion.
Someone who is attempting to take their own life on the railway is doing it not because they want to; they are doing it because they are severely unwell, and not fully in control of their own actions.
The trespassers in these Flying Scotsman incidents are wilfully endangering their own lives, as well the lives and welbeing of potentially hundreds of others including witnesses, and those who have to deal with the aftermath. They are fully aware of what they are doing, and entirely responsible for their own actions. They know - because it is not like it's a secret - that they shouldn't be doing what they are doing. What's worse, in my view, they divert time, energy, resources, and public awareness away from more important issues, such as suicide prevention.
It is the trespassers themselves who are the problem. It is the trespassers themselves who bear responsibility for solving the problem. It is their problem. They do not deserve understanding, nor extra measures being taken to protect them. They deserve to feel the full weight of everything that the law, and the courts, has to throw at them.