Rulebook definition of blood hunt vs card texts

There seems to be a disconnect between the definition of a 'blood hunt' in the current rulebook, and how cards affecting blood hunts are worded.

The Rulebook:

When a vampire commits diablerie, a referendum is automatically and immediately conducted to determine if a blood hunt will be called on the diablerist. If the referendum passes, a blood hunt is called, and the diablerist is burned.

Gangrel Conspiracy:

Cancel a blood hunt called on a Gangrel antitribu. You may play this card during your turn.

The wording on Gangrel Conspiracy would seem to suggest you cancel the effect of a passing referendum, if you read the rulebook verbatim. However, the actual use of Gangrel Conspiracy cancels the preceding "blood hunt referendum".

There may be other examples, but I didn't check.
Suggest updating either the rulebook or applicable cards as appropriate to avoid confusion for inexperienced players.

TIL! Thanks for clearing that up, Ankha.