They Can be ducted, with controls. But something of this scale, this many floors, this size of floorplate, it wouldn't be that efficient through the length of ducts that would be needed. Also means if the aircon unit breaks, instead of one room of angry customers that you can move, you end up with say 10 or more rooms to deal with, if served by one unit. Besides I've just looked at the floor plans and the risers between the rooms don't look big enough for vertical ducts, not for this many storeys.
Not sure I get your question on the heat pumps, but might be in my earlier post, of the two in succession.