As for me, Alys's death isn't so bad at all...I don't feel it to be a "copy/past" of Nei's one : the two have moved me out and have saddened me equally but maybe that is because I'm a bit sensitive ? (but it's not meaning that Tili or pother people aren't, don't misunderstand me !).
For me Layla/Alys isn't a bad character at all and the starting of her "story" with Lutz/Rune was bcoming very interesting but...we will never know the truth about it ! Sadly...
I haven't seen coming her death at all, I swear it ! So that's bcause I' may be a bit stupid this time ?