It’s honestly not too strong if you think about it.
Let’s suggest somebody claims Observer as Assassin. Princess checks them:
Your target is either a Killer or Offensive (If the Assassin is lucky, the False will read Investigative)
Yes, RNG isn’t always great but it’s a lot better than just finding Killers all game.
What makes it confusing?
You get two results when you Flirt.
Two different Types.
One is wrong. One is right. That leaves it up to you to work out.
The problem with roles like this, or ToS’s Investigator, is that they use overly restrictive methods to reduce claimspace for evils, even if one didn’t roll in that particular game.
I believe this will give scum a better fake journal.
With two chances to get their right Type 
But my real point is this - if you flirt for the first 3 nights and you get Special and whatever, you KNOW that person’s class type 100% for certain in Unseen games.
The fact that Special still comes up Night 1, 2 and 3 gives the Princess an RNG based chance to automatically know a person’s class type.
Also, there is no skill involved for the Mastermind/Cult Leader when they are investigated. They have to somehow guess which result came up for the Princess in order to make a believable claim.
They have a choice of claiming 6 classes other than Special. So an investigated MM/CL has a 1/6 chance of avoiding suspicion.
So we can do better going forward
If I get a chance I’ll see about a Princess ability replacement that isn’t RNG
maybe
