Bob,

Terminal area, rivermouth and even in river gillnet fisheries are the preferred management technique throughout Alaska. The purpose of them is to have a single stock fishery as much as possible. Gillnets, restricted by mesh size, are the most selective, legal, commercial fishing method for salmon in Alaska.
As far as the late king run goes, it may well be a myth. My understanding is that they are stragglers of the main run
The fact is; there are no known threatened runs of salmon that will be impacted negatively by this commercial fishery. As you well know, there is a long history of sports anglers working, sometimes illegally in the case of one board of fisheries hearing, to have all runs of Cook inlet salmon except pinks and dogs reallocated to sports fisheries from the traditional commercial user group. So lets call a spade a spade, this is not an issue of biology but of politics.