Your argument is that the wording of headlines is so meaningless as to always be beneath comment? Seems silly.

I think you're missing the point by a mile. The point isn't some tedious debate over grammar; it's about the choice of language that perpetuates the idea that suicide is a tragedy that happens passively 'to people' in some kind of tragic, medicalised, incomprehensible way which is severed from any socio-political context.

In this case, these people were driven to suicide. I would argue that those responsible for the Horizon scandal are guilty of at minimum manslaughter of these poor people.