i finally realized why this chapter hits harder than the rest. Its hard to put into words but when someone hones their craft for so long those experiences are carved into their being and doesn't go away, something akin to muscle memory, actually it is muscle memory for some at that point.
This chapter highlights just that, even when theyre defeated and left the idol world the experiences carved into their beings are still their and subtly we are being shown the dream they once pursued as idols, kinda like how yuusei still see the idol in sumire and the rest of the girls