My thoughts exactly. What on earth is the point of hydrogen trains when electric trains have been a thing for about 150 years? I guess it might be marginally cheaper to switch diesel to hydrogen vs installing overhead lines or third rails, but considering the cost of setting up hydrogen infrastructure (not to mention developing the rolling stock) I doubt it’s vastly cheaper.

Overhead lines supplemented with chemical batteries for short stretches where it’s impractical seems like the solution in almost all cases.