Not that there aren't others who agree,
but I'm not one, so I'm curious as to your reasoning.
Well, it's not that I don't like main/player characters dying in fiction (Rock on Rorsach, you'll forever have the greatest manga spread Wolfwood, I'll never forget you Lavitz, and The Myst has the best movie ending ever
), but for this game, as I said, it would be hard to feel good about despite any other favourable happenings accompanying it, and I'm trying to think of a situation that would even warrant it for the characters (Save Hisao, heart thingy allows him to die from a sneeze and still make sense >_>) outside of being a Key project where everything MUST go as horribly, horribly
wrong as possible (I can see it now, Hisao going to propose to Lilly as she walks into traffic >_>).
I mean, these girls have been dealing with their disabilities for a long time, most from birth, and none of them seem particularly life-threatening (Except the cancer eating away at Misha, of course. That's totally a wig, let's face it.
) and there's no reason for the blind, deaf, limbless, and burned to suddenly take a turn for the worse short of a car accident straight out of Kanon.
Plus, the game largely strikes me as happy, or to put it another way, not dependent on sorrow and tearjerkers to move the plot forward, despite there sure to be some such moments. I'm sure there's plenty of conflict in the later arcs to go through (That scrapped deal about Hanako and the drugs and the mental hospital and such was certainly a chilling vision of things to come
), but I can imagine you get my meaning from what's seen in Act 1 after you get to the school moving forward. It's practically all sugar and rainbows aside from Hisao's occasional depressing inner thoughts about his medication and condition.
Basically, kill 'em only when it makes logical sense to the story and prevailing tone, that's how I see it, and I find neither fitting in the case of Katawa Shoujo.