The more important bit of info from this is that, as believed by some of us here to begin with, KNC is having folks physically transport the chips during these transits, in order to bypass customs delays.
In my experience it's not always optimal to do things different than the regular procedure as you will deal with people which have no experience on how to handle the situation.
What will the Arlanda customs officers do when someone arrives with a huge box of heavily packaged commercial merchandise worth thousands of dollars sealed in foil? They are used to search for drugs, alcohol, and other stuff among dirty underwear. What if they insists on keeping it for further inspection? Or what if they open the sealed bags and you have to re-bake the chips and get another delay?
Hopefully they have checked out this in advance.