Special Administrative Improvement District?

An article in the BBC, “Uniform row rocks HK Disneyland” has great quotes from Chinese officials:

Financial Secretary Henry Tang said: “We welcome Disney to come to Hong Kong to invest in Disneyland, but in the process of building Disneyland, no-one has special rights. Everyone is equal before the law.”

An editorial in the Ming Pao Daily News says Hong Kong residents suspect Disney “wants to engineer special rights and turn the theme park into an independent kingdom that Hong Kong laws can’t reach”.

Now, why would anyone think that Disney wants an independent kingdom?