if that's the case then i think they might be lying when they claimed that they were not aware of a noise issue! these huge mining facilities really don't do anything for the communities they locate in. they don't serve them in any way. no products no services. just existing to do computations to make a buck. why these local governments would even allow them to set up shop in the first place is mind boggling.
They probably are aware of the potential issues, but they might not be aware of the extent of the issue. It's hard to gauge unless they actually live near there which is quite rare for people who can actually make a difference.
I don't doubt there are benefits to allowing miners into your state but it has to be moderated well enough to ensure that it benefits the locals more. In this case, I find lots of anecdotal accounts from the Texans about how miners moving into their state hasn't brought any tangible benefits to them; louder noises, no employment opportunities, etc. Hopefully they can be more transparent about their activities can affect the locals and if they have any mitigation measures to address them.