also bts hit songs have always been upbeat, cheerful songs. spring day is another story because it wasnt an immediate hit. few months after its release it almost fell off melon. it's its unexpected longevity that made it what it is now. i read it somewhere when dynamite was released, people don't want something that make them sadder than they already are. althought the message of lgo is hopeful, it still remind ppl too much of their unfortunate situation (especially the mv) meanwhile dynamite is just about being happy, it makes you forget about the bad things for a few minutes. we will have to wait to find out how lgo does and if it ends up like spring day.