I feel people are being rather too quick to judge here...
As far as I can tell, Dutch Nationality Laws (
http://en.wikipedia.org/wiki/Dutch_nationality_law ) do not allow for Dutch nationality to be taken by someone who is not living (or has not lived) in The Netherlands for at least 3 years.
This would also be true of, for example, UK nationality laws. If I have a child here in Hong Kong the child will take the nationality of his/her mother and doesn't have the option of UK nationality unless and until they have lived in the UK for 3 years (the same applies to my wife). If I adopted a child they would keep their previous nationality unless they meet the same conditions.
And as far as I can tell from a quick look at the Singaporean government web, the same would be true if Mr & Mrs Sunniefaith were to adopt a non-Singaporean child in Hong Kong - no Singaporean passport until they have lived in Singapore for 2 years.
