I play ~13h WoW per week. 10 of them is raiding and most of the time: progress (which is wasting time when u want to get a legendary). The rest of my time in WoW I do m+ with my friends, do a couple of WQ / BGs / whatever. I have done this for years and this is the first time that it's not enough. I need to play outside of raids to be decent in raids. And that is the main problem: the system is fine for everyone who plays WoW 7 days a week. But for the ones who only got time for raiding two evenings per week, the system drastically failed.
I play WoW since beta and I am no student anymore. People have jobs, wifes and commitments these days - unfortunately, there is currently no space for people who can't play 20h per week in this game anymore. Because without the BiS legendaries, there is often no point of competing at all.