this is something i strongly agree with though. the initial stages are obviously a set up for like everyone involved. having kang hyewon cover good day, or bak doha cover my house, is nothing but a set up.
the signal song checks too get me. the songs are too high pitched imo, and to expect them to sing that while dancing when most idols these days usually have some sort of vocal support (not saying 100% lipsync but y'know, some support, not 100% live either)? impossible. in boys planet you had vocal mentor onestar scold bak doha, a 0 star (or f class) contestant a baritone who had 0 idol training prior to the show as an acting trainee, telling him that he can't just sing low pitched stuff all the time and that he had to sing high at some point... when the song in question is absolutely comfortable for me, a girl, to sing... but then most boy group songs are written so that their female fans can sing along to them. that system imo kinda sucks to me.
that said... bak doha was anyway there just for shits and giggles mnet didn't really care, which is why you have onestar, a reputed vocal coach who has worked with exo and onf, two bgs known for their singing prowess, just straight up scold someone for not being able to sing. which is as crazy as a reputed math teacher scolding someone who dropped out of school in 8th grade for not being able to do trigonometry. it's all scripted bs, all in mnet's hands.
and yes the assigned songs are always horrible, if mnet include a bp song in the next instalment of planet istg i will show up with protest trucks