Unless the financial system changes this will always make sense. With stable prices negative gearing would just be about people losing money and investing poorly without the 6-8% tax free capital gain it would just be stupid. People do not expect to pay back debt anymore, they know that central banks will engineering inflation (reduction in the value of a dollar) to sort out their debts. The display since the financial crisis has been shocking across the globe, wholesale printing of money and something as ludicrous as negative interest rates has been preferable to letting asset prices fall. The system doesn't make sense but property investor is giving the right advice for the times.
We need to scrap targeted inflation as a policy it has only been around since 1990 in NZ when people still believed in trickle down economics. That is all it is a dumb idea that if rich people feel wealthier we will all be better off as the wealth trickles down.
I haven't got the statistics but I imagine wealth is actually trickling down while the main flow upwards increases wealth and income inequality.