....listed values being for Two-Handed, gold-quality items: Do staves count?

Nocturnalan

Adjusted the values and bonuses of Weapon Traits in the following ways, with the listed values being for Two-Handed, gold-quality items:

Decisive: Increased the chance to generate one additional Ultimate to 40% from 34%.
Defending: Reduced the Spell and Physical Resistance granted to 2752 from 5160.
Infused: Increased the bonus value granted to the applied enchantment to 30% from 20%, and increased the cooldown reduction to the applied enchantment to 50% from 40%.
Nirnhoned: Increased the bonus to the weapon’s damage to 15% from 11%.
Powered: Increased the bonus to healing done to 9% from 7%.
Sharpened: Reduced the Spell and Physical Penetration granted to 2752 from 5160.
Charged, Intricate, Ornate, Precise and Training remain unchanged.

Do staves count?

Banana

As a 2 hander. Yes