What you say is probably true about business traffic but I disagree with your point about the terrain. Commercial traffic operates at airfields with considerably higher terrain than Kinder Scout in the surrounding area. It may be 2000ft but it is over 7 miles away. I've flown out of Woodford many hundreds of time and haven't hit the hill yet!
The bigger hindrance might be a lack of parallel taxiway. I believe planning permission was sought many years ago but it was never built. It was a pain at times when the airfield was busy.
I don't actually think a commercial operation is on the cards anyway, mores the pity.