Now, BigHit is EXTREMELY smart about this, because, I'm sure that everyone has noticed BTS' absence as far as social media? They haven't updated in 5 days, now going onto 6.

This is to give the illusion that the boys are really gone. It was all within Jin's memory since we, the fans, are seeing everything through Jin's point of view, we are experiencing what he felt, realizing that they are all gone.

With the boys acting as if they're really gone in real life, it gives us the feeling of longing, and that emotional connection of not knowing if they're okay, or where they are, just like Jin.