Matrix Light tends to cost £1000 to £1500. Cayenne is £1380 or roughly £750 more than PDLS +
They have the units for the Cayenne/911. The Cayenne unit is very similar in shape to a Macan lighting unit
As for demand, there are a fair number of Macan purchasers coming from recent BMW's with matrix lights. they are available on most cars considered Macan Competitors i.e BMW X3/4 Audi Q' etc
I can see Porshe are stretched in staffing development areas and time and staff could be an issue but really it is the priority they choose to give to the allocation of resource.