Been thinking the same thing. It was just used just a bit too much, specifically brought to our attention more than once to be an accident. I think there is more of this to be found throughout the different series.it could start with Luke listening to Danny's iPod and appreciating his taste in music
Speaking of music, I loved the music and scores for Cage and Iron Fist. In need to go back and listen to Jessica Jones and Daredevil to see if I like those as much.