they are more clearly justified in mia's song i think. not saying that they are or are not intentional, just proposing a possibility.
plenty of songs use gunshots and other effects. i am not talking about those. just this song and its possibilities. if they are in there certainly violence at home and abroad in the news and in entertainment may be contributing to the speaker's malaise.... melancholy.... whats great is we are all interested in this song. in this music.
ive yet to hear someone say "i'm done. tuning out." this is very nice.