Please understand you are starting from a premise I don't share, which is that these schools, let's say UConn, had as the primary goal of this "negotiation" a strong stable Big East football conference. I think that is false. I think UConn, Syracuse, Rutgers, Pitt, and WVU have instead been planning an exit strategy since BC left. I think SFU has no viable options and probably has the BE as its first choice. Cincy and Louisville probably also viewed it as option one. But for the other five, I do not believe it has been the first choice for several years. The BE has long been option B, for most of it's FB members. It is certainly now option B, if not option C, for all but SFU.
So it's not that there is nothing we could do, it's that there is nothing we wanted to do enough to make us do it. I think UConn is weighing the upside of the ACC or B1G or even an unlikely merger with the Big XII, calculating the odds of each, and then looking at the worst case scenario if they fail (Independent FB, BE other sports). I think they are willing to roll the dice based on those odds. Sure, they'd prefer the new big east to independent status, but not if it forecloses what they really want, which is to get out.
Here's the analogy. It's Lets make a deal. Three doors with the ACC, B1G and Independent. You have "new Big East" in hand and can walk away. Do you do so? You are saying "yes"! The presidents of these schools are saying "no way!". This is a calculated risk. Many of us have been telling you that we think Herbst knows the true odds better than we do, and if she's rolling the dice, it's probably the right move.