Robz is taking heat early, which is pretty normal for Robz. I intended to unvote him earlier, but apparently forgot, anyways I'll unvote now since I'm not really comfortable with my vote there.
As far as the set-up error goes, my guess is that they made a mistake in some step of the randomization (like leaving scum players in the pool when determining power roles for instance, swapping roles around the number ranges, or messing up the ranges). We don't know what the error was, but based on the conversation it COULD have resulted in an invalid C9++ set-up, but didn't. This suggests to me that the power role randomization was a bit off. What we know is that the end result is a valid C9++ set-up. So, I personally am going to assume that probability-based analysis on role existence has the potential to be flawed due to the error, unless I am told otherwise. So I will not argue: "he claimed doctor, but there's only a 5% chance of doctor given other information so I'm doubting the claim". Only binary, i.e. "there cannot be 2 1-shot vigs, so the person claiming 1-shot vig after a 1-shot vig has already died is obviously lying and needs to be lynched".
Now other stuff:
@Frisk: I think the only simulations we've run were by me in VIII about the 2-shot vig. And so in a uniform-random decision-making town the 2-shot vig improved win-% by about 10% (if I remember). 1-shot vig reduced win-% by about 10% I think also (this was the result of changing the parity). SO, a 1-shot vig should only shoot if we have other parity changes (from i.e. a doctor or SK or nolynch). I think this is one of those situations where Robz disagrees in the same fashion as Galzria did. 1 more town player helps town if it changes the parity to odd, but doesn't if it changes the parity to even. Therefore I would rather have 1 extra town-directed kill than have 1 extra town player hanging around day2. This is a difference of opinion, and I recognize that though, ultimately the vig needs to decide where they stand on it.
I'm going to Vote: Axxle because I find his behavior thus far somewhat suspicious. He seems to be trying to generate suspicions and inflame arguments.