It shows that planet formation is really ubiquitous in the universe. It's a very robust process and can happen in all sorts of unexpected environments.
We're amazed that the planet-formation process seems to be so universal. Pulsars emit a tremendous amount of high energy radiation, yet within this harsh environment we have a disk that looks a lot like those around young stars where planets are formed.
What's remarkable here is this process of planet formation, which we associate with the birth of stars, seems to also be able to occur at the end of the stellar lifetime, sort of a renaissance of the system, in some sense.
This disk looks remarkably like those also seen around ordinary young stars in which planets are known to form.