This government is a pub covers band version of Thatcherism and they want their Scargill moment.
I have been saying this for a while, I think certain people in the government have been relishing the opportunity use the dispute for wider ends. Hence the tieing the hands of the TOCs while pulling the strings behind the scenes, to deflect anger on to the TOCs.
The difference in this case is that Mr Scargill had already stored up a lot trouble because of events during the 1974 strike, he was seen as trying to bring the government down, and once Mrs Thatcher came to power there was always going to be a day of reckoning, the final showdown was planned well in advance, and I think it was obvious that it was a dispute the miners could not win. I dont think the RMT have 'stood on as many toes', they may not be as popular in Government circles, but its a different level I think.
The learning from this is that the RMT need to avoid making it a showdown with the goverment as a political statement, and keep to the issues to those directly related to railways.