I don't consider the EV incentives to be "massive".  Not when compared to these outrageous vehicle tax write-offs for
* interest on loans to purchase automobiles (up to $300/mo), 
* automobile leasing costs (upto $800/mo), 
* capital cost allowance (30%), and 
* operating expenses such as fuel, oil, maintenance and repairs, licence and insurance costs. Even parking, tolls and car washes! 

The EV incentives are the only tax breaks ordinary people get to buy extraordinary cars that save them a lifetime of buying gas and give us all a quiet breathe of clean air in the bargain.