It's par for the course in the premium PC parts industry. It's overkill in a way that does not impact performance at all because gamers will pay for that.

> does not impact performance at all

Noctua fans are still the top #1 performers in the world. You can argue that it's diminishing returns and you can get a fan with 90% of the performance for 50% of the money, but that doesn't change Noctua's position at the top.