Re: Announcement: Bitmain launches AntMiner solution, 0.68 J/GH on chip
Depends on the provider - plus it's one of the more expensive options, so I'd imagine they ruled out cellular or line of sight solutions on the short term already. Pingtastic internet is still better than no internet 
Not as far as mining goes - & satellite is absolutely the worst for mining, no matter who the provider is - it's a trait of satellite. Expect a flood of orphans/rejects - they'd be better off using a modem......
Their miners are almost certainly talking to a local proxy. Satellite probably only connects proxy to the bitcoin network, miners never see anything but < 1ms ping. This is a no issue, except in unlucky event of some extreme weather storm/heavy rain which could block the satellite fora few hours which is very, very rare event. Of course, any business should try to switch back to optics as soon as possible just to be safe.