I don’t think anything much can be determined from just the wikileaks email. Abramovic seems an odd bird, but it is not unreasonable to think that the event in question could be a normal dinner celebrating her strange art event. I would be hesitant to attend a dinner with her, considering her views on cooking. I would feel the same way about dining with Dr. Lecter, even if the menu said “chicken”.
I realize that Lecter is a fictional character.