I've found these military performances creepy for the longest time. The whole concept of sending in girl groups to perform for the soldier to "cheer them up" is both degrading and creepy when the groups have minor members. The groups performing are girl groups for a reason. I think it is rather clear they are not there for "music" but as eye candy.
I remember there was a whole scandal about STAYC not wanting to perform. they have minor members! but people were acting insulted.