It never has made sense to me, how crossing the ocean twice in a container ship on top of labor can be cheaper than processing at or near the source. Beyond that, quality and freshness has to suffer greatly. When domestic capacity to handle this is gone or greatly diminished due to loss of business, there won't be any other option. Seems like a bad idea to me.
I won’t swear to this part, but it’s not beyond the realm of possibility that the fish were flown to/from China.