I would be opposed to a complete ban on Steam trains running on our mainlines. Firstly, they are a tourist attraction, and secondly they bring joy to many people. Every steam train excursion delights the people taking part, both the passengers on the trip and the volunteers who make it happen, but also hundreds of people who see a steam locomotive crossing the countryside and feel a little happier for it.
Taking that away would be one more reason for people to feel negative about railways, and we don't need more reasons for people to be negative about rail.
I accept it does not bring joy to people delayed by a failed steam train. However, I think we should be looking at ways of reducing failures, and minimising the delay when they occur.