Either way, the idea does make a lot more work that needs done...since you would have to go in and touch up at least 2 mip maps per skin, and in some cases have to completely redo the skin (since it can get really really blurry).
Seems like a lot of unnecesarry work for something that could be fixed at the source. The regular Generals skin although cartoony don't blur much when u zoom out. Editing each mip map seperately than the original skin is probably to much work for a part time skinner.