I don't doubt that some agencies have rates on AQ without perks. It's just probably not the No Perks or No Perks NRD rate codes as those rate codes T&C don't include Aqua or Retreat.
Cruise must be booked May 5 - June 8, 2022 (the “Offer Period”) and applies to sailings 3-nights and longer departing June 1, 2022 to Apr 31, 2024, excluding Galapagos and Alaska cruisetours (the “Offer Cruise”). Promo code not required. No Perk Rate: Cruise fare savings amounts are per person, and vary by sailing length. Sale is not combinable with Always Included. Offer is combinable with Airfare Offer, applicable to all guests in the same stateroom and will be automatically applied at checkout. Offer is applicable to inside, oceanview, veranda, and Concierge staterooms. Offer excludes Aqua and Retreat staterooms. Offer available as refundable and non-refundable