Interestingly enough, that was pretty much my experience with 7 Days to Die. I decided to play on a multiplayer server after trying out single player and lo and behold, the server that I'm on when I joined in A15, is in fact with that type of difficulty of 5. Except now our blood moon is random.
@madmole, I think the game is fine as it is. Heck even when I started on that multiplayer server, even though the difficulty of it is at 5. I don't think, I ever had a problem as a new player to game having started on that server or difficulty. I'd say the game is already intituative as it is.