http://www.nba.com/2015/news/10/09/nba-fantasy-best-centers-2015/
Is it hard to believe he wouldn't be one of the top 3-4 centers in a couple of years? Maybe even higher when you consider he doesn't have the baggage of someone like Demarcus Cousins. What level are you calling superstar?
If you asked GMs which center they would pick right now to build a team around, Gobert is high on the list because he's already great, and getting better.