Eh, it seems like kind of a cop-out to blame stuff like 'the glamorisation of death' on music... I mean, that whole attitude of glorifying death and suicide has been around for centuries, and pops up everywhere from the tales of soldiers making desperate last stands (Thermopoli, Rourke's Drift and Little Bighorn, to name just three) to children's tales (check out
http://pediatrics.aappublications.org/cgi/content/abstract/42/1/49 for a particularly creepy Victorian example). It would be a lot more productive to look at what causes that glamorisation in the first place, and also have a look at the problems with society that cause them, like the way status and success is prized above personal happiness and the stress caused by people trying to meet unrealistic expectations of stuf like body image and earning potential.
So yeah, I think music that glamorises suicide is just a byproduct of much larger problems, and I think it's dumb to just
blame the music when it would probably just be a minor contributing factor at most. I'm not sure if it can be completely disregarded, since music can obviously have a powerful emotional impact on people, but it's still kinda silly to just go "hey, let's ignore any other factors that might have contributed to this death, MUSIC KILLED THIS GIRL".