Not nonsense lah... Allow me to explain.
Introducing this CM has absolutely no effect on govt but to generate more revenues. Govt already recognised that the local demand is high enough to meet the supply that's already in the pipeline. So if the supply will eventually to snapped up, whether by locals or foreigners, govt just ask for additional stamp duty lor. Imagine 100 000 units PC sold in next few years at only 3% stamp duty (minus $5 600) or they can enjoy 90000 units of PC at 3% stamp duty plus 10000 units of PC at 6% stamp duty?
Selling land parcals at higher price will also generate revenue for our lovely govt.
In short, both are actually singing to the same tune. Why not? So no nonsense lah... in fact, our govt is very screwd and meticulous leh!