Idol music is an escapist genre and everyone acknowledges it. Most kpop is hyper focused on visuals and even fans do not care for music. The stigma in korea against idols is so bad a lot of people scoff at the ideal that an idol is even a "real musician".
And it's not false to say that idol music does indeed lack the capability to connect emotionally with the audience. Most songs are supposed to be fun pop songs with some ballads thrown in here and there (something which I call elevator music).
My opinion is that it is because of a factor deeply engraved in the routine based idol training system. I was recently listening to an idol group quite known for their vocal prowess in the kpop circles and the song felt like a sucker punch of hollow disconnection and indifference. The artist was singing about love, obviously, in what you would say quite impassioned manner, the lyrics suggesting a forceful approach to the said love even. But it was just that...a normal pop song which you can hear on the radio and go about your own way without being affected deeply.
Do you guys think it is the routine based nature of idol music responsible for this and the conservative nature of it or is it the hyper corporatisation?
Edit:- Before anyone makes this to be a hit against Korean music in general, like kpop fans generally do, read back to my opening line. I am talking about the perception of idol music in korea itself. The same argument can be used for American pop stars for example but there I expect the answer to be a bit different given the geographical and culture context.