You're condemning Apple by continually looking to the past as inspiration for their future. There is no further refinement of the AirPort Utility to be made. Setting up my Netgear wireless extender was just as easy.
The three biggest innovations for Apple in the past 2 decades have been the following in chronological order.
1) The iPod
2) The iTMS
3) The iPhone
The original iPod languished on side shelves for years after the iPhone took over. Apple needs to find the next iPhone because their core business can't be iPhones 10 years from now.
Everyone's in on this game except Apple it seems.