That's not correct. It screws blood nations somewhat badly, actually. Blood hunting is a method of converting gold into a type of gem ( blood ) which is then converted into ( generally ) some type of troop.
This changes the ratios.
Oh and let me add Abysia to the list of nations I wish I was playing. Yes I know that they are a blood nation and thus somewhat screwed. However SC's mod really buffs them ( a total suprize to me ) and with the Rich settings they can take total advanatge of this buffing. HC provinces are no match for them by turn 3 ( regardless of pretender, you can take a Rainbow and still be crushing HC on turn 3, yokies).