I find the Neutral King and Alchemist very boring classes. They generally promote very passive and BD sided play, since they are the biggest faction, until the Unseen/Cult/Neutral Killer gets the upper hand.
Alchemists, at least good ones, are basically Physicians early game. There is little reason not to keep them, since they can heal you. And for Unseen/Cult/NK, killing them is not killing a sworn enemy. Alchemists have no motivation, so they will do as they please. And they can’t be converted, so in that way they are better than a Physician.
As I have heard NuclearBurrito complain about, you can’t usually tell a Good and Neutral King apart. They are basically good early game, and just flip if the Blue Dragon is losing.
What I’m saying is, being Alchemist/Neutral King is not a challenge.
I do feel survival is an interesting goal, but not on classes that are only good for the Blue Dragon. I do think a someone who had to survive, but was harmful, like the Carrier in Pestilence Forum of Lies Game, could be interesting, as people would want to get rid of you.
But I feel just a plain survival goal is boring, promotes passive play, and adds very little to the game.
One of the things I love about Neutrals is their interesting and diverse goals, but Alchemist/Neutral King are not interesting.