Sorry jumping in late on this thread.
Regardless of the merits or otherwise of stopping the service, I'd say it's good that the industry has obtained widespread publicity for the warning of disruption including the statement that ticket restrictions have been waived. At least people who choose to change their arrangements or not to travel at all have the best opportunity to do so.
I agree 100% - publicity is key here.
Personally I'm going to take a chance today by going to the office but - knowing in advance that the TOCs are expecting trouble I intend to keep a close eye on things.
At the first sign of trouble I'm high tailing it out of there and rather than head to my usual station (16 min walk - by which time it could be too late) I'll go to the nearest and grab the first train going vaguely in my direction. Hopefully it will get far enough that I can at least walk home. I'm also taking supplies - you know - just in case.
Without the publicity I would have been sat at my desk until normal home time completely oblivious to any issues the trains might be having and might end up with a 15-20 mile angry walk home!
I would much rather the relevant companies were upfront and I'd rather a train was cancelled at source than get stuck part way, in the middle of nowhere, with no electric and therefore no heating, no/limited food and water and no light.
And probably no mobile signal either