1) How do we know the Impostors are on a suicide mission though? The Impostors being described as alien parasites don't give me the impression that they are hitmen getting payed top dollar to screw over a space mission at their own risk. With the lack of a backstory, we can't know for sure, but the Impostors give me the impression that what they do in the game is for their own benefit. If the Impostors are smart enough to know how to sabotage a spaceship, why would they do it knowing they will die in the process? For the rest of what you said, I didn't mean it would be bad game design in general, I meant that only turning into a ghost when being decapitated but not when being ejected would be an unfair inconsistency. If Among Us didn't have ghosts at all it would be fine.
2) We should remove this point because I think I brought it up too early. As mentioned, this second point is related to my first point, so we should debate about the first point.
3) Right because there isn't something for the ejected characters to land on in outer space. Oops. Anyway, the time it takes for a character to die from being ejected should be taken into consideration, just like how the victory screen for Impostors showing them surviving their sabotages should be taken into consideration. An ejected could've died from something unrelated to suffocation or burning, Impostors wouldn't be able to cause those against the Crewmates if they would also die to them (unless you can convince me that they are okay with themselves being terminated in the first point).
4) Thanks. I understand why that's a rule too now that I thought about it a bit, but it's not like statements from developers
aren't used on the VS Battles Wiki. While straight-forward statements from developers that are unrelated to canonicity may be the least priority, there is nothing else in Among Us to make what the developers say any less accurate than what is shown. I wouldn't describe what I've seen as people already pestering or harassing the developers with questions, but I have seen
the topic of the anatomy of Crewmates brung up often. If people have asked about that, I think it wouldn't hurt to ask why Impostors die in outer space when they don't die from their sabotages. The only answers they would give that I can think of are either the Impostors dying in the process or that the Impostors die in a different (or unknown) way. Of course there are many instances where a developer won't have a clue about how strong and fast their characters are, but the simple ability to not need oxygen to live shouldn't be problematic.