if it's details lacking 'by omission', then ya, I agree with you - Scheer is lying. Your key takeaway from the referenced critique should have been the lack of information/detail... the alternatives you're speaking to. Perhaps you could fill in for Scheer/CPC and identify the alternatives you're presuming upon - yes?
The big one would be bringing down the price of EV vehicles. Giving $14,000 rebates for $100,000 cars.
The only way for this to work is for it to be Private Sector driven. For example, meat alternatives, high efficiency appliances, and more fuel efficient cars.
In Ontario, the Carbon Tax has already been consumed by a natural reduction in the price of gas. It's just a tax grab.