It is 'to the edge of time' and what they mean with it is that the JWST can look very far back into our past to the earliest days of the universe with its instruments that are capable of observing severely red-shifted wavelengths.

It was “to the edge of time itself” which I guess is some kind of reference to the telescope being able to observe the early universe? It seemed kind of cheesy.

It means that someone was paid to talk, because radio dies hard.

The idea that commentary should be informative and that content can speak for itself is (still) deeply threatening to many folks in the broadcast industry. See any sports broadcast for examples.