It isn't and they haven't. Reading past the headline is a basic skill of news reading. It doesn't make it misinformation just because you don't like the headline.
You know full well many people will share this article, never read past the headline, and repeat it. The sentiment held in the headline will be the one that persists and the damage to Musk and Tesla’s reputation will be done, even though the truth is that you would need to artificially rig up the car to defeat its safety measures.