Although there is more space at KPAE than on an aircraft carrier and fewer planes than at a boneyard, there were still issues of space with so many planes on the ground. There were issues with production and engine availability as slookabill mentionedmentioned, as well as the grounding due to the battery issues.
As ratchetfreak mentionedmentioned, the marking is at the north end of the runway, so it is meant to be viewed facing south as 16L.