Someone tell me if I am wrong here, but if I recall, the Swan/Dolphin were the result of "fine print" in the Tishman contract to build Epcot, which pre-dated Eisner.
Okay - a long story to tell in little time.
The problem with WDW when it opened was its seasonality. Back in the seventies Dad still got his two weeks so everyone piled in the station wagon and took 'The Great American Family Vacation'. This meant that WDW was jammed during the typical vacation months, but empty at other times.
Disney thought that one way to help balance this out was by attracting more conventions and business meetings. They tended to happen during the times of year when tourism was slow - a perfect counterbalance. And with all the fine dining restaurants being planned for World Showcase at the EPCOT Center project, Disney had an instant nighttime entertainment and corporate event area.
But Disney was also very strapped by the effort of building EPCOT Center. It was said it was the largest project in the country. Also, while Disney had fantastic success running its own family vacation hotels, it knew nothing about running a convention center. Disney wanted first class facilities, that meant getting someone who knew what to do and not trying to do too much at the same time. So Disney signed a deal with Tishman and others to construct a convention facility and hotel adjacent to EPCOT Center.
However, EPCOT Center was barely opened with Michael Eisner took over. His first thought was that he hated EPCOT and wanted it sold off. His plan was to use the money to fund his main stream live action movies. But when that deal fell apart, his next thought was that he was going to squeeze every dime out of it as he could.
That meant not letting anyone in on all those hotel and convention revenues. He tried to break the contract but failed. He agreed to a new deal on the condition that he could select the architect for the new hotel. Eisner had been a life long architecture buff and he was determined that as head of Disney he could become a Patron of The Arts.
It went right to his head.
In his own mind, he was ruling over WDW the same way as the Medici ruled over Florence. It was his mission - no, his
obligation - to bring Great Art to those mouth breathing, Wal Mart shopping, churro snorting "little people". Eisner never understood the appeal of something like the 'Haunted Mansion', but he knew that deep down you really wanted to see post-modern deconstructuralism in an ironic juxtaposition to mundane functionalism.
It was rumored he would fume when people didn't recognize the 'Venetian' dolphins on the roof and called them "fishes". I personally prefer to think of them as carp which have been dropped from a great height...but I don't get modern art either.
Anyway, Eisner spent hundreds of millions on his building projects. It all came crashing down with Euro Disney. Because of him the company dramatically overbuilt and forced such a crushing debt that even after 15 years the viability of the resort is in serious doubt. Suddenly Eisner, Savior of Architecture, lacked the funds for any more buildings.
Like all problems, Eisner simply abandoned and ignored the situation.