Huelwen
And so we learn that they are out to control us homins for their own unknown ends. The fact that they need something from us and are trying to control us should make us suspicious of their complete neutral honesty in descriptions that they and their followers contribute to subsequent lore.
The first statement (which isn't itself completely true) does not support the second statement. While you might be able to make the "control homins" claims about the Karavan, as the lore does provide a little bit of wiggle room, I would like to see your sources for making those claims about the Kami.
You also fail to establish that either side needs anything from the Homins. Again, you might make claims about the Karavan, an even greater stretch than above, but there is no basis in the lore for a definitive answer.
Huelwen
Add to that the in-lore prevarication about the kami's all-knowing nature (it should be obvious to any reader from context that we are only speaking about all-knowingness within atys and not the entire universe), and i cannot imagine that individual kamis are incapable of corruption.
I defer to the lore first:
"They share a collective conscience and it would seem that no living species may escape their perception, and consequently, their wrath if their laws of conservation are transgressed." (Source, Source)
Your suggestion about "individual Kami" has no merit because there is no such thing as an individual Kami. It's that collective conscience thing that you skipped right over. If you have corrupted one Kami, you have corrupted all Kami. That's not going to happen (unless of course you are Karavan and already hold that the Kami as a whole are corrupted. But that's not part of this discussion *grin*).
Now, we could go on and discuss theories about the nature of the Kami, and origins and goals of the Karavan, but those things are not necessarily grounded in the lore.
Now, having concluded our lore lesson for the day, lets re-visit your original post:
Huelwen
I understand that the reason for enforcing no neutral TPs is to make joining a faction attractive. However, wouldn't be enough to have someone in each zone willing to sell anyone a TP for the right price, where the right price was extremely inflated and possibly modified by fame? Corrupt officials are everywhere, why aren't there any in PR or Void? Maybe it could cost 5-10x as much to get a TP if you are neutral in zones that currently require alignment. You'd be slightly rewarded for fame and penalized for neutrality.
You want to remain neutral. That's fine, and perfectly wonderful.
You want advantages that neutrals currently do not have. That's understandable, and MAY have some merit. But remember, Neutrality also has its benefits, as does aligning with a faction. And they all have their drawbacks. One stance cannot overwhelm the others, with the understanding that the game developers are encouraging players to choose one side or the other, and have been doing so ever since the introduction of factional exclusivity.
Since this is an idea thread... Unless you present some strong, compelling, and lore-appropriate way to give advantages to neutrals that they currently do not have which also does not cause an imbalance, I'm opposed to your idea.