Maybe it’s just harder to design with something simple that is possible to extend and build on. Maybe I am missing something. That said I agree with the author from my decade of experience.
If the rest of the world standardizes on solar+battery, demand for oil goes down, and so will the price. Which in turn makes US-produced oil not cost effective to extract, and domestic energy production collapses in favor of cheap foreign imports.
And then we're worse off in several different ways.