All upgrades are granted on a space-available basis for the entire stay, as determined at the time of check-in. Preferred rooms are identified by each individual property and may vary within each brand. Upgrades may include the next-best available room from the room type booked, rooms with desirable views, corner rooms, rooms on high floors, rooms with special amenities, or rooms on Executive Floors, as identified by each property. Upgrades exclude executive suites, villas and specialty accommodations (which may include, but not limited to, "Vista" and "Villa" accommodation types), subject to the discretion of the hotel. Upgrades will be given only for one room for the member, regardless of additional rooms the member may have purchased at or after the time of booking.
So it looks like they are offering this promo for non gold/diamond members? or are they thinking about removing this benefit from gold/diamond members and doing this instead...?