Again, that (escapement trend) may have nothing to do with the changes to hatchery production. Also, total run size, which accounts for all harvest levels, in and out of the bay, would be much more informative, i.e., sure escapement is down, but that't because the fish were caught in or out of the bay, not because they didn't recruit.
If the issue is all related to the changes in the fishery since 2010, why are they revisiting the hatchery production?
Again, it's important to keep the apples in the apple basket and the oranges in the orange basket.