I liked the focus on Salinger here. In the comics, the Foolkiller is an artist of sorts of goes around killing people he views as "fools" for various reasons. There's some similarities here. The narcissism and inability to accept his own inadequacies are probably his biggest factors. He kills people he sees as "cheaters" or people who get by on something other than their intelligence. But the fact that he includes Jessica Jones in that demonstrates that he isn't actually right. She's a detective with a sharp mind and doesn't just depend on her powers, but he can't accept that she'd succeed in this world so he assumes that's not why. Likewise, with Erik, he had no clue how Erik discovered his secret, but he refuses to accept that it could have been due to intelligence because that would suggest a failing on Salinger's part. This was the right point to explore some of that - although I don't fully buy the idea that he's been "unleashed" and I was also disappointed by the delivery at the end of the episode.
Some fun Marvel Netflix connections here - especially the reference to Rand. Who is in charge right now? I seem to recall Ward being with Danny at the end of Iron Fist, so I assume it's somebody else. Also, speaking of connections, I take it Marcy no longer works for Hogarth?
Four and a Half Stars.