In NL you can already get prices by the 15 minutes and sometimes I get paid to use electricity on windy and sunny days. eg see easyenergy.com. You get the prices 24h in advance, so you can even plan optimally without the need for advanced predictions.
It's crude but if what you're saying actually became an issue, you could solve it by doing the same thing and charging people more at those high demand times.
What's actually more likely to happen though is covered in the article you linked: cars hooked up to the grid will charge when there's excess electricity, and discharge when there's a demand for electricity. See page 8 here: https://www.chademo.com/wp2016/wp-content/uploads/2021/05/CH...