it's that it meant something. It was earnest and genuine, and people related to it, specifically Pinkerton. But River's, after it's failure, has resorted to taking himself out of his song writing and has instead become nothing more than a jingle writer. It's not that those songs are an apex in song writing. It's that he was writing with emotion, instead of "Your Slayer tshirt fit the scene just right..." or whatever the fuck that bullshit line is.