You seem to illustrate my point after trying to counter it. Disney didn't release figures, but admitted that all of its worldwide properties, EXCEPT Walt Disney World, saw an increase in attendance. However, their reports only account for U.S. parks, whose attendance remained flat. For The parks to remain flat and Disneyland to have increased attendance, WDW had to have lost attendance...which they won't admit. No one is saying that the decrease is coming specifically from the Magic Kingdom. I think you are implying that other people have implied that it's from the Magic Kingdom.
As for Jakeman, thanks for getting the numbers. But 1.6 million people is 1.6 million people. That's a lot of people. Do you really think Disney WOULDN'T want them? Or that they would want to lose them to Universal, even if only for a day. If we assume that all 1.6 million people only came to Orlando for Harry Potter but stayed for Disney, then that means, with flat attendance and without Harry Potter, Disney would have lost 1.6 million people in attendance. Alternatively, if those 1.6 million people merely took a day or two out their Disney vacation, it still means Disney lost 1.6 million visitors. Obviously that's not happened. There are dozens of scenarios, but either way, Disney lost guests. Crofton is doing a lot of spin, plain and simple. Potter only moderately helped them.