One problem lies in the fact that the "kill" command is NOT a shortcoming. It is a command that has high strategic value, in any gamemode where it is allowed, if used correctly. It can deny money, deny kills count, stop objective completion bonuses. It is a normal gameplay tactic, just with more incentive here.

It's also not clearly referenced anywhere, which is what I'm trying to fix. Currently it just exists as side notes.

Not really sure how "XII. Spec/Retry" applies. First off, the kill command is neither going to spectate or rejoining the server. Also, going spectate doesn't avoid death, at least in WCS. Related: death does not: Avoid death or let you play twice. If you read it "using any method to avoid being killed by another player", then I can see. But if that's the case, then we still have this clarity issue that I'm trying to bring to light.

WCS also has need of related, but different rule, which is why rules such as:

1) Taking advantage of the shortcomings of a map
A) Using methods not intended by the map creator to gain an advantage where it is 99%+ impossible for zombies to get you
B) Camping in areas that you can only get to by exploiting a map or using special zombie powers to get to the end of an escape map

Don't apply to us and we have rule 3 instead.

On your edit, the recent ruling that while you disagree with, you also should know about. Here for the curious. Going to spectate to buy tomes is allowed. So a normal gameplay element is granted additional functionality in WCS. Killing yourself to get more tomes, at least I'd qualify them as similar. Same for "kill" to remove kits from Vagas.