At the time that photo was uploaded there really wasn't a slide scanner out there that could produce better results (unless you had access to a drum scanner). Most of us slide shooters either had transparency adapters on a flatbed or the extremely fortunate had the 1st gen. Photosmart.
I am sure if AirNikon re-scanned the slide, it would look fantastic.
To most people, the sky is the limit. To those who love aviation, the sky is home