I don't see anything about Orcas there. Am I missing something?

The article mentions orcas slightly, but it is more about the effect of the marine mammal act on salmon populations. The effect on orcas is mostly implied, it is fairly well known that decreased availability of their primary food source (salmon) is causing their near extinction.

Here's another, if you're curious

https://www.nwnewsnetwork.org/post/hey-seals-and-sea-lions-q...