Causeway being a border issue is under federal. It see s like jiu hu CIQ has no management in charge of entire complex. Immigration do their stuff, got their own areas, customs like wise.
JB boomed under badawi who was contemplating a open border, like the EU but dr m started to protest .
Theme parks flourished in jb due to day tours by tourist from china and india as no visa was required.
Najib put a stop to all these and the rest is written in failed projects all over jb.