Because they charge at night in off hours to fund the electric companies, those electric companies can lower rates. Electric companies getting extra revenue (that would go to oil and gas) at night during hours that they are not a peak capacity.

Where to begin .... nevermind, it's not worth it. Author is brainwashed, stupid, a propaganda mouthpiece, or all of the above.

Because they use bad mental gymnastics.

These types of articles aren't designed for us to understand. They're written for the people who are under mind control. It's merely a talking point. Like math, it's too complicated for idiots to understand, therefore, they just accept the premise: buying an EV is good and helps everyone.