TREADMILL WORKSTATIONS

I was investigating the latest workplace wellness fad - treadmill desks. There's a variety of them (here's one - http://www.nextdesks.com/treadmill-desk?gclid=CKmas_yAm8sCFQmqaQodxqYCLA ). You can get powered ones or what is called an "incline model, which has no motor but relies on gravity to get you to drive the belt against an incline. There are beautiful high-end models , up to $4k and there are bargain designs where you can retro-fit a desk and a surplus treadmill.
Basically, the idea is to get you off you ass while working, a "step above" (so to speak :) ) the standing workstations that appeared a few years ago. It seems we can be as lazy with the standing versions as just sitting all the time. We need to move to benefit from a standing workstation. 

Do we really want our kids (or ourselves) having more excuses to avoid being outdoors and staring at screens?

While I laud the efforts to get us more active, it seems to me we are missing a few critical points:
1. Walking on a treadmill is hardly a substitute for a brisk walk in a non-work natural space. Perhaps what we need more than high-end fitness equipment crossbred with desks is more opportunities to interrupt work with exposure to natural environments?
2. Do we really want to find new ways for our kids or ourselves to spend less time outdoors and staring at screens in an isolated space?
3. How does getting some exercise while staring at a screen cultivate any greater sense of our physical lives? Its not that different from the banks of gym-people watching Ellen DeG while they workout?

I'm more inclined to ask questions about the nature and form of work in our lives. We are being engineered to be less and less autonomous individuals and more like "units". I can't see how these desks are step in the right direction.