I think there was the added wrinkle of &quot;programming language made by the company that also makes Chrome&quot; vs &quot;programming language made by the company that also makes Firefox&quot;. Google&#x27;s and Mozilla&#x27;s browsers were&#x2F;are competitors, so why wouldn&#x27;t there programming languages be? Obviously, the two companies have completely different reasons for the development of the new languages, but I think that was overlooked at the time that Rust first came out.