The big problem, IMO, is going to be avoiding kneejerk reactions and legislation by grand-standing politicians. The Sago disaster started political types flapping their gums and this will only add fuel to the fire. Any new safety procedures and/or equipment must be kept as far as possible from the influence of politicians. Just wait 'till the talking heads enjoin the usual suspects Sunday morning.
I'm not trying to by any means devalue the seriousness of these mens deaths. But if you take the combined total mine workers in the U.S. and the deaths per year many more likely die driving to & from work. There is no way you can make a mine 100% safe it's like a ship there's no way you can make it 100% safe. You train and hope for the best outcome doing your job. Sometimes the outcome isn't good.
But it needs to be miners both Union and Non who get the first and most say in the matter. They have the most to loose and know the problems , limitations, and practicality of it best.