TwoSix
Everyone's literal second-favorite poster
I think it very much depends on what sort of game you're playing. If you're playing more of a story arc where a character or characters' personal motivations and connections are drivers of the plot, character death can grind the game to a halt.I think the real problem with easier deaths is you need to balance the game so that a full party isn't necessary to complete a mission, because the way it is now, if you do kill a party member off, everything gets dramatically harder, and depending on which one died, continuing might be impossible, so now you have to have "extra characters" to rotate in quickly, which can be just as troublesome for verisimilitude.
And really, what's the difference between your original character surviving til the very end or "Exact Clone # 34" surviving to the end?
If the game focus is simply on having the party complete missions they find, then the individual components of the party don't matter so much, since they aren't the driver of play.