The results aren't shocking -- surprise, antihydrogen behaves much like regular hydrogen (just with reversed charges). If it didn't, scientists would have to rethink their understanding of physics. The very act of measuring is important, though. In addition to shedding light on the nature of antimatter, it also tells scientists something about the nature of the universe. In theory, matter and antimatter should have destroyed each other almost immediately. The new findings don't explain why that didn't happen, but they suggest that it isn't due to the inherent nature of those substances.