Two big advantages that this study dismisses are local vs remote pollution, and an easier ability to take advantage of generation mix changes. Even if EVs have the same life life cycle cost, their pollution is always at a remote source further from population centers. That matters for the tailpipe emissions. Secondly, it's much easier to replace a few power plants, or improve their pollution output, than millions of internal combustion engines. If all cars were EVs fed from coal plants, it would be easier to make that clean than millions of traditional vehicles.