I don't think Telltale needs to keep the Sierra tradition of just randomly killing off the character for no good reason or because your reflexes aren't good enough. Likewise, you shouldn't get into a situation where you did the wrong thing near the beginning of the game, which you discover hours into the game, and now you have to restore to some really early save point, and replay everything in the middle again. That's not fun. It's just annoying.
Not to say the characters should never die. Sam & Max 302 got this right, where the characters could die, but it just immediately and automatically went back to the point before you made the bad decision. You can even have a few decisions between the bad one and the death scene if you want. Just don't make us play the whole blasted thing again.