Hulu actually did this three years ago, but then changed it to $1.99/month for the past two years. And, you couldn't get it if you were already a subscriber. It was for new subscribers only. This year, anyone can get it.
The only downside would be if you have the Disney Bundle. There's no plan that takes this Hulu deal into consideration. Still, it's a heckuva deal. If you were thinking of the Disney Bundle with standard Hulu, it may be cheaper to go this route. However you do it, it's a great way to include Hulu in your Streaming Life.