True. But another of Seba's points is that self-driving tech, combined with ride-sharing apps (like Uber) will make vehicle ownership itself obsolete (or at least 'moribund') by the mid-20s. The overall point is that technology revolutions don't happen incrementally, they follow an "S-curve" of exponential adoption.
Of course, in some situations, it will always make sense to own a car (eg: rural areas), but even then, there will be economic incentives to switch from gasoline to electric, both for maintenance and fuel cost per mile. At that point, it's just a matter of how "emotionally attached" you are to your 20-year-old gas guzzler... especially if oil prices go up again by that time, which is not a particularly unlikely scenario.
Meanwhile, the price of solar just keeps dropping. And the installed 'base' of solar capacity has doubled every two years since the 90s. I don't know what percentage of the world's energy demand is met by solar, but let's just say it's 1%.... how many more "doublings" will it take for solar to dominate the market? As any hacker can tell you, 2 to the 7th power is 128... which means that (if the current trend continues) solar PV will be the dominant player in the energy market by 2030 at the latest.
BTW, Seba puts the tipping point at 2025, when all new vehicles on the market will be electric. It will be interesting to see how that prediction plays out.