I believe that WDFW pushes as hard as it does in the ocean to ensure that they don't have to deal with the inside tribal fisheries. The gist of How v. Baldridge was that catch had to be shared. The tribes get to match what the state has allowed to be taken. If fish were "left on the table" there would a call to reduce tribal fisheries because "the run isn't there".

So, catch is front loaded so later fisheries can occur. If the tribal catch is poor, then it is "obvious" the run is in trouble so we close the in-river guys.

Escapement? Who cares, the fisheries occurred.