Hyatt doesn't discount award stays. They used to have "last minute" discounts on revenue rates like "Starpicks" but have discontinued that maybe 2 years ago.

Once in a while they'll do a Limited Time Offer (LTOxxx) rates that are pre-paid - sometimes they can be good for some properties - but not overall.

Hyatt promos have generally been on the "earn"side - stay credits, extra points, or the traditional big one (FFN - where 2 stays earned you 1 free night - both the stays and redemptions can be anywhere in the world).