The issues is these workers spend very little in Alaska.  Some dispute that fact but here is the scenario: A slope worker from out of state arrives at Anchorage airport to fly to Deadhorse.  They spend a few weeks working and then fly back to Anchorage to board a flight out of state.  While they are here they live in company housing and eat at a camp.  They spend very little while in Alaska.  
Meanwhile you as a year round resident will pay sales tax on every purchase you make during the year. 
The out of state/country workers will now post how this is a bad idea as they use no state services or things paid for and maintained with state funds.  Which of course is a fallacy.