Yeah the confusion is pretty easily cleared up. The two immunities in this case are debuff and stun. Debuff immunity means only debuffs cannot be placed. Passive stun is a passive, not a debuff. So it can be placed. Parry stun is a debuff, so it cannot be placed. Stun immunity means only stuns cannot be placed. Passive stun is still a stun, so it cannot be placed. Debuffs in general are not stuns, so you can still place a bleed debuff for example.
Yeah the confusion is pretty easily cleared up. The two immunities in this case are debuff and stun. Debuff immunity means only debuffs cannot be placed. Passive stun is a passive, not a debuff. So it can be placed. Parry stun is a debuff, so it cannot be placed. Stun immunity means only stuns cannot be placed. Passive stun is still a stun, so it cannot be placed. Debuffs in general are not stuns, so you can still place a bleed debuff for example. I ws confused between whether the Guidance converts the debuff into a passive, or it applies a passive from the start