Playing the game on default settings is perfectly fine for the typical gamer I've seen play the game. I can easily take over a POI and survive just fine, but I want the challenge of being forced to build stuff, which makes the game harder, so I turn down AI block damage to suit the challenge I want.
I have ZERO interest in permadeath. I play games to have fun. Not to be stressed out that one death will mean the end to my world.
It makes me laugh every time someone expects me to be great at a game I've worked on. I'm an average gamer and die a lot at any game I play. Knowing how the code works does nothing for my reflexes and attention when playing a game. On any reasonably sized game team, you have great players, horrible players and those in between.