This country is way too big to have a national stadium. It benefits everyone for games to be played across the country. Otherwise you're going to alienate fans.
I don't disagree, but nothing stipulates that all games must be played in national stadiums. Hong Kong Stadium isn't even the most prominent stadium on the island, much less across the entire city.
There are problems with this proposal of course. This isn't one of them.
Ok I wasn't sure if that's what it was implying that all games had to be played at the national stadium. Either way we already have plently of stadiums and I don't see a need for another one.