I don't have any confidence in their statement "The tailing storage facility would be built to withstand the strongest earthquake." 
If everything goes right with this project, sure, the company will make a ridiculous profit, and locals will get tossed a few crumbs. But when something goes wrong - and it's just a matter of time before it does (we're entering a time where climate change is about to wreck havoc on the planet) then it will spell disaster not just for the people but for fragile ecosystem on Bristol Bay. 
Let's not be so blind to the dangers that we believe the profitmongers who push for development above all else. We defeated this once, after a mighty grassroots groundswell. It's only back on the table because of Trumps EPA pick. Let's not let ignorance determine Alaskas future.