Your agreing is insufficient. In a curve all points are equal. In this respect, there is no difference between Anchorage and anywhere in the earth.
Only if you completely all the features.
If you don't then not all places are the same.
For example, if you make a lot of product in the US or Asia, and want to switch the location (so a US product goes to Asia or an Asian product goes to the US), then then instead of anywhere on Earth being equally suitable only a narrow region is best.
For example, you wouldn't send products from Asia to Africa and then back to the US.
So what is the best region for US<->Asia?
Well, the most suitable would be on a path connecting them.
The best places for that are Alaska and Russia.
Other locations are in the ocean/near the north pole where the weather is much worse.
So that really leaves Russia, Alaska or places further in the US or Asia.
If you go too far in, that will be a waste as products would go all the way in, just to go back.
This makes Alaska a quite reasonable location.