Based on your post, the only reason you aren’t a fan is because you haven’t actually watched him, or Anaheim, play.
Anaheim’s blue line looked anything but stacked the last season. They’ve been rather porous, and the only reason they haven’t been bleeding goals is Gibson.
Your conclusion isn’t based on anything that even approaches fact. Ask Anaheim fans who the MVP of the team was last season. You’ll likely get two names: Getzlaf and Gibson. Ask them how Anaheim has won their first two games. You’ll get one name: Gibson. Just because you can look at a roster doesn’t make your opinion informed.
Gibson is one of the best young goaltenders in the game. The stats back this up, and the eye-test backs this up.