In the SHCK interview, the teacher usually asked about non-electronic/tech things that a kid would usually find at home. I guess, the competition was more fierce in the last 2 years due to dragon baby boom, and no wonder the questions were set at a more difficult level.
Full day primary school becomes the trend because many working parents demand so (and it possibly helps increase employment ?!).
I tend to agree that half day primary school is actually better. However, there comes another problem, most will therefore ask for am primary school...