Saw this opinion somewhere and I believe this is true. People don't care about groups and idols outside of big 4, especially in this day and age where online presence is all big 4 focused. Big 4 idols who are 2 days old into their debut can post an average selfie with 200k likes and retweets saying "MOTHER" whereas a mid-low tier group/idol can have post a song cover made with genuine effort and not even get 2k likes, minimal engagement.
At least on a survival show where you withstand the trauma can get your name out there and still get jobs afterwards. Even if you get the worst evil edit possible, bad press is better than no press at all, and people can recognize you from somewhere.