The article's title is misleading. NC does not forbid him to talk engineering. He can write blog posts, yell at the corners, print books. What it does not allow

The article's title is misleading. NC does not forbid him to talk engineering. He can write blog posts, yell at the corners, print books. What it does not allow him is to testify as a witness in a court presenting himself as an engineering expert. While I agree this distinction (being licensed) is stupid, the court is within its right to impose it. Spinning this case as some sort free speech supression is just bad jourlalism.