This does look dire.
One thing to point out:
No way he could keep all of the mentioned (Faber, Durzi, Walker, Roy) - at least one of them would have to go regardless, as there was Doughty, and only one of them could play LD (and wasn't that great at it) and it's questionable how well Durzi would develop had he played 10 min/game instead of 20. And Spence never gets a chance and he likely joins the list of would've-beens that didn't get traded for a return (Kaliyev, JAD, Thomas, Bjornfot, Turcotte, and Kupari, that Clif noted). Clarke doesn't get drafted either, but it's entirely possible that someone like Sillinger gets drafted instead to fill the center need in the prospect pipeline.
Now that I think about it...drafting Stützle might've caused Sturm to be hired instead of Hiller, too, who knows...
But in this scenario the Kings might end up with sub-par goaltending that doesn't get them any farther than they got anyways. It's true though that the future would look brighter.