Any mine inspector will tell you what happens if they try to shut down a coal mine. The same politicians who are standing in front of the news cameras right now are the same politicians who will have them fired if they even try such a thing.
It's all about money. The fines are so small and the coal companies fight each and every violation for so long that the system is completely ineffective. The state wants the tax dollars and the jobs so they just keep repeatedly issuing citations. It's all a big joke. The miners know it. The coal companies know it. The politicians know it.