I do. I think the structural rigidity of modern rolling stock is rather good. We have had accidents where trains have been thrown all over the place, e.g. Potters Bar, Grayrigg, even Ladbroke Grove, with nevertheless pretty good maintenance of the integrity of the passenger compartment.
I wonder what the families of those killed in your examples would think if you told them "the integrity of the passenger compartment was pretty good" ....... some trains may fare better than others, if all this junk came down on a Pendolino, how would that fare in comparison to a Pacer?