Since Star Trek is fictional, all we have is our movies and TV shows whether made professionally or not. So when Tahir steps onto the bridge, he can actually say "I am the Captain of a Federation Starship". That's about as real as it gets without actually being frozen for 300 years and defrosted. And then the Star Trek thing is unlikely to be the current reality even then. So he is in a very elite group albeit a fictional one. Very few people get to say: "I was once the Captain of a Federation Starship". Pretty cool.
And I'm soooo looking forward to Ironman