It's only "so clear" to a very very very small percentage of the English speaking world. Most native English speakers wouldn't have a clue what a "chao recruit" is.
Playing to the lowest common denominator isn't going to help lift the level of written and spoken English. All it does is perpetuate mediocrity.
Language skills improve when high standards are set and people are forced to raise their game. Those who don't understand a word or phrase should take the time and effort to find out what it means. It will serve them well in the long run, especially if they are forced by circumstances to move to an English speaking environment.
Many Singaporeans have missed opportunities abroad because they failed to understand English as it is spoken in the international business world.
Singaporeans can't afford to be insular. The country is far too small. You can't wrap yourselves in a cocoon and get away with it like the Americans and the mainland Chinese can.