From what I remember of a Dollhouse trailer, Fox was wanting to sell RoboHos: The Series. If Whedon had other ideas, there would be the dread "creative differences." The Fox people may well be right in thinking that sex would sell better. (And, sight unseen, I'd guess that Fox executives who think there are major problems with Prison Break are right. Serials usually have grave flaws, because the format demands artificially delayed resolutions, including character rewrites.) Or bad times may just be making them freak out over budgets. Usually (but not always!) when a show is so bad that TV executives, whether Fox or not, are worried about the quality of the product, the show is really bad. This is a bad sign, but not definitive. No point in freaking out til the premiere.