SgtBundy,
A week is a long time in technology.
If something remotely viable and simple to implement could have been done, it would have been done by now. The Tomnod marketing excercise was rolled out in a couple of days.
Fact of the matter is that implementing and debugging algorithms takes some time and effort... and therefore manpower and money.
Add onto that you're expecting satellite companies to retask their satellites for a vast area of fresh imagery..... who's going to pay for that on top of the development manpower for your magic algorithm.
Your optimism and faith in existing "simple algorithms" is commendable, but that's all it is.