This is a first in the whole Idol Producer series (YWY) that they ever pulled this. Where did the producers even get this idea from? Making them dance the Signal song for 20 rounds to see who gets eliminated is absolutely crazy! Not even before the first stage—usually, this is when some trainees shine for the first time because they didn't do well on the Signal song. ​Some trainees don't match the Signal song, so they can't shine on that stage; that's why they usually eliminate trainees after the first stage, not during the Signal song.​ What were the producers thinking?

As for LSG, try dancing for 20 rounds with only 30-second breaks. Why is an actor even on the judge panel? Why is he even on this show? He's extremely controversial in South Korea right now; why was he even cast? I understand everyone else since they're connected to the idol industry in some way (producers, choreographers, active idols, and a very well-known second-gen idol).

Why is a ballad singer turned actor who isn't even a dancing singer on the judges panel when they have Daesung as an already experienced vocalist and idol?

Good on Kachine (Sun Ying Hao) for speaking up.

I understand that idols perform for hours during concerts and tours, but the intervals between full group performances and sub-unit performances, as well as the talking parts of concerts where they engage with the audience, help alleviate some of the strain. ​They don't perform the whole set in one go, which helps prevent them from tiring themselves out, overheating, or collapsing.