I am huge HK Disney fan, in fact I have visited HK Disney at least 30 times since opening 8 years ago. Hong Kong is a very expensive city with a problematic shortage of land and the astronomically prices that comes with it. For example, a 400 sqft apartment in a non popular area will cost 3 mil hkd (already among cheaper ones). This land shortage also translates into HK Disney as well. I would have preferred everything big just like the US Disney parks, but since this is simply impossible therefore going for mini lands is the right way to go for HK Disney I think. At least this will give us the impression that the park seems bigger and using more theme variety.