Except that it wasn’t according to people actually invested in researching energy matters.
The strategic mistake was and still is, when her party throttles solar and wind in favor for fossils (on a national level) or when they hinder transitioning to EVs.
They’re sabotaging decentralization and renewables wherever possible and make up stories about sunsetted (nuclear) or future (fusion) technologies.

Except that nuclear cannot be throttled and is no base line option.
Wind, solar, batteries and gas play well together in central Europe. Other countries have other resources, like water.
In addition hydrogen is complementary for heavy industries and can be produced when all batteries are filled up.