I think their dorms probably don’t feel like they have anywhere near enough space in them for all of them, now. You could see that they were very keen to split up into those who wanted to party and those who wanted to rest even if the massive new ITS complex.
And last time, Yoongi was in the camper and Jin was in the tent - and Jin was still so aggravated by the noise that he decided to wake them all up with fireworks one day! 😂
I see it the other way around lol. They split up bcs there were many spaces, so they feel the need to explore all those spaces for more content 😂