That programme it's new, so I don't think they really have an specific number of people to enroll it. But it is very common to have about 20 students enrolling new programmes each year.
I think the kind of work that this Msc trains you to, it's similar to the MPP's one, maybe in the MPP web you can see something related.

Hope this information can help you.....cause I was applying to that Msc too, but as my second choice, and I got an offer from my first