Off peak charging already exists today, however there aren't enough electric cars to make utilities heavily incentivise of peak charging solutions (it would only make sense for me to do so if my car was fully electric and not a hybrid due to initial installation costs)
The problem is that the best time to charge a car is immediately after it has been used, so it is ready to go the next time. Who wants a half dead car sitting around?
(Range anxiety for ICE will eventually make a huge comeback. Electricity is everywhere, imagine driving a car where you couldn't just plug in anywhere the electric grid is and had to go to "stations" of a scarce mostly single-purpose resource for power. Haha.)
You generally don't need a full charged car at all times of the day: if you and your car both know you'll be at work for the next 8 hours and most likely you only need the 20 miles to get home, and a couple after work errands (plus some range floor for emergencies), there's plenty of leeway in how and when it charges.
It's the usual sort of bootstrapping hurdle that a lot of the "user interface" of it probably can't be well developed until there's a general demand for it, and there won't be a general demand for it from the Utility side until there's maybe a larger installed base of vehicles with the capability.
But, the interesting part is still pointing out that plenty of people are already thinking about it, and it is a somewhat exciting part of the equation of how more electric vehicles potentially better balance the electric grid more so than "destabilize" it or hugely increase peak demand. (Because not only are they capable of smartly arranging their charge times to off-peak demand times, but also are giant roving batteries that can themselves act as temporary storage buffers for the grid.)
Me? I charge my car when I come home from work. Provided it's charged by morning I don't car when in that time it's charging
The article does not claim that electric cards do not reduce emissions sufficiently to solve the problem of climate change all at once. It claims that electric cars increase emissions and that increasing emissions exacerbates the problem of climate change.
It's not saying that electric cars are only a partial solution. It's saying that they are part of the problem.
I take a bit of issue at his swipe 'if you can afford them'. Since the price is falling fast enough that electric cars should be actually cheaper than gasoline ones within a few years. Which means we might end up with more electric cars than we would gasoline ones. So yeah some of the negative externalies are fixed, CO2 emissions and air pollution. But others are not, traffic fatalities and injuries, traffic congestion, industrial pollution, resource depletion. And low prices may mean more of the latter not less.
We have to improve on a lot of fronts and the attention argument is one of the better ones... finding better ways to achieve the same is worthy pursuit. Sailing across the ocean to save on emissions worthy action for some young female climate activist, but certainly not something many of us would be willing to do.
By attaching wheels and motors, electric cars make people pay more for batteries than they ever would otherwise be willing to spend on energy storage.