Hahaha...The Rat is serious about copyright infringement!
No, the lawyers are serious about Disney's potential liability if a non-employee is seen as being Disney staff, and takes advantage of the implied position of trust to (for example) molest a child on Disney property.
The creator of Peter Pan, J M Barrie, bequeathed the rights to the Great Ormond Street Hospital for sick children, which still holds them. Disney has never paid a red cent in royalties to the legitimate copyright owners. They pay millions to their lawyers to cheat sick and dying children.
Remember that the next time you think about buying a Disney product.
They've copyrighted tinkerbell? That's quite a trick, since Peter Pan was published in 1904. I don't think Disney has managed to bribe enough congresscritters to extend copyright back quite that far.
Yet. Give them time, I'm sure eventually, Disney will claim copyright to stories by Grimm as well, as epics like Homer's Odyssey. It's only a matter of time untl there will be no such thing as the public domain, because only corporations will be allowed to own our literary heritage.