The entire article is 100% bullshit and has nothing to do with EV per se. All you need to do is look at general electricity prices, which have been going up, not down, especially in the countries that have the highest renewable rate (Denmark or Germany).
https://www.researchgate.net/figure/Line-graph-of-average-el...
Once electricity prices start collapsing and battery capacity issues are resolved, I'll start believing the story.