I think the trouble Eisner is in now is merely a culmination of the past ten years making enemies, bad decision making, and the effect of Enron and other corporate giants mismanagement of their respective companies. Or at the very least perceived mismanagement. I believe shareholders have simply had it and want to voice their dissatisfaction.
True, the company did do extremely well in the past quarter, but the pension funds and other financial groups are taking a serious look at the past five to ten years. They frankly don't care about the personalities involved, and they certainly don't care about people like us who have an emotional investment in Disney overall. They are more concerned with the numbers. That is, increasing their stock worth. And they obviously feel that new leadership is needed to make them more money.
As for the purchasing of Disney by some other party due in part to the oust Eisner campaign giving the impression of weakness, I don't know that it's so much a perception that Disney is weak, you can argue that to whatever end you like, so much that it's the media holdings in the company that people really want. I can see why Comcast would want them because of ABC and ESPN. That's why people have discussed possibilities of selling those particular holdings and maintaining the core assests that make up Disney.