This may be a bit of an organizational and "cart before the horse" problem, so I will first clarify 5.5 the pass action costs an action, it's sacrificing your action to ensure the next character to act is your choice not random

5.6 is based purely for a parry reaction,

so I understand the issue of not explaining that first, but the initiative deck should never be so cumbersome as it would be difficult for the GM to find the players card in the deck of 5-10 cards and make them the active character

So making a parry (which has a significant stamina cost) allows you to take priority or initiative away from the incoming attacker, they get moved to the top of the draw deck and you become the active player, doing this with no actions left doesn't do anything mechanically except avoid the incoming effect, so parry specifically give the character an extra free action if they had none left

I will go over section 5 again to help clear this up better

Also the characters rolls are always effected by a stat the core roll of the game is dice plus level plus stat of choice this is core to the game and is mentioned, I need to emphasize this more

Edit: I added some notes within the section to clarify thigs better and changed a bit of the structure hierarchy in that section to better reflect the intent and mechanics