It's important to this article because its claiming that the name is coupled functionally to what the code tests -- that the test will fail if the name is wrong.
I don't know if any test tools that work like that though.
That's not what the article claims at all.
It claims that, in order for tests to serve as documentation, they must follow a set of best practices, one of which is descriptive test names. It says nothing about failing tests when the name of the test doesn't match the actual test case.
Note I'm not saying whether I consider this to be good advice; I'm merely clarifying what the article states.