Think I've listened to this The Kills song about a dozen times. I think I had heard of them before, but don't believe I ever actually heard anything from them (well, knowingly). Though I just now realize that they had the song for Shaw's first episode (Future Starts Slow, a strangely fitting title for Shaw's intro and disappearance for a few episodes :lol)
Looking at the lyrics for the song "No Wow", as This Show likes to use songs that not only fit for the scene visually, but often have lyrical meanings in the show. Thought this line was a bit interesting.
They all been put down
Who ain't dead yet, fled to die closer to the shore
At the time, the 3 were scattered, and unsure on the fates of the others, with 2 literally going to the shore. Plus, the whole last arc is probably a hail mary attempt to restart the machine/stop Samaritan/survive.
The main phrase "There ain't no wow now" is what I interpret the rest of CBS programming to be, once POI is gone.