ANC/BRW or FAI/BRW is commonly over $1.00 a mile. (which adds up to about $500-$800 on average from either destination). The cost of the segment well exceeds SEA/ANC on average...or even a fare from the east coast with codeshares on each side.
The highest fare ive seen in alaska is $7.00/mile (PSG/WRG)..at a distance of 32 miles.
The article makes it seem like ANC is the best place to fly in/out in the world.
ANC also does have a ton of cargo traffic going in and out of asia.