Watson was supposed to be an amazing milestone in AI: there was lots of hype as it faced and beat Jeopardy champions.
But Watson had to be given numerous advantages so it could even play. Some things that the human competitors did that the AI didn't have to do...
Go through an application process by their own cognizance
Go to the competition in person by their own cognizance
Visually see and/or audibly hear the question
Translate those physical stimulus into something comprehensible
Use their own physical body to trigger the response button
There's two main points. We live in a physical world (most of us anyway, WoW, etc, ha!). Our abilities are incredibly broad.
All of the accomplishments people are pointing to are in a very focused domain. They're useful and impressive tools, but that's all they are.
For there to be any real threat, AI would have to make two unlikely jumps: general versatility and independent function in the physical world. I'm skeptical that it will ever happen.