eh, the death of major characters is not as gloom and doom as some portray it here. the show set itself up for that kind of expectation with how it started. i was floored when they killed Ned Stark in season one. then the red wedding....etc, etc, etc...for the TV viewer, it gave you a real sense of not knowing what would happen, and with that, very excited to see what happens next. that's basically it. it's not that you want big deaths all the time....but when you have them it changes the dynamic of the show, and sets a new path. and for hte most part, that's been pretty dramatic and exciting for the viewer.
there have been a lot of big moments in this show, most have been pretty much on point with what drives the audience to watch.....
not too many other TV shows out there generating the kind of talk like this one has...so mission accomplished.