One clear instance of FUD we do know about is the spec itself is not titled with the name of the language it specifies, which is then its own source of confusion for newcomers trying to learn the web platform, and makes it harder for old timers to explain things, and is generally annoying. Complexity. Confusion. Doubt. Inaction.
Removing legal FUD from the world is a good cause. I don’t mind if it also works as a good marketing play for Deno.