Agree with you, and some facts to back this argument up. Details on the 2018 subsidies:
https://cleantechnica.com/2018/01/06/chinese-electric-vehicle-subsidy-changes-2018-details/
Importantly, the higher the km range, the higher the rebate. Furthermore, this last article shows that Geely will reveal their EV450 400km model around March this year. I am sure others will be following suit, sooner rather than later. So one might expect, a spike in sales, as you have pointed out in the chart.
https://wattev2buy.com/electric-vehicles/geely-electric-vehicles/2018-geely-emgrand-ev-300-specs/
With each day that goes by, it is apparent demand will increase exponentially with new EV's hitting the market, not just cars but buses, scooters etc. The nay-sayers will only find it harder and harder to tout their rubbish. Time is not on their side.