Lessons Learned:
- Despite entire fandom constantly talking about the Chaos Gods and threat Chaos poses, most of the Imperial Guard aren't supposed to know anything about it, less alone the specific names.
- Despite their enemeis in Sabbath participating commonly in diablerie and fandom making big deal out of what an unforgivable crime it is, it is not something an average Vampire of Carmarilla knows about in any way.
And if they beat chaos, they still have a pretty good chance of getting shot for knowing things they shouldn't.
The imperium has access to mind wipe technology, and has used it for those that survive incidents with chaos or xenos that are considered classified. They can't really afford to simply kill everyone exposed to these things.