This is not the news that informs.
I can't tell from the article if they count Tesla's Berlin factory as "German assembly line".
If not, the article should say that.
If yes, to say that "Germany’s automakers manufactured" 1 million EVs is misleading given that around 25% of that was Tesla's Model Y.
Tesla has a factory in Germany but it's a stretch to call it a German automaker, just like Toyota has factories in Mexico but we don't call it Mexican company.
Either way, to namecheck Volkswagen or BMW but not Tesla is just bizarre.