It's not a dead link - if you look at your information bar when you hover over it, you will see the exact url that is is linked to. It takes you right back where you were. Poor programming, yes - dead link; nope.
It should have a category heading to point to, but they obviously chose not to include a header there and didn't remove the link when making the choice. Instead, they linked back to the same document. It too is a simple fix, but I'm guessing wgt has better things to spend their time on right now.
A dead link takes you no where, these take you somewhere, like THIS!