Yes, this was also the thing with SM, though I think with them it was about preserving the idol image and not letting see behind the metaphorical curtain. It blew my mind when I realised SM groups had stuff like recording behinds now because that so antithetical to the SM I remembered!

And the music definitely comes first for me as well - I need to enjoy the music to be able to really get invested in a group and their performances or content, but there is truly so much content now (most company variety shows aren't my thing, so that helps lol)