As well as Grant's wife needs to go to a 5 star hotel after the stay at LieLie Land, their needs kids first, need to go to Paris Disneyland, but when they get back to Australia, get some counseling!
Seriously though, Grunt knows what Lielie is like. He knows from his visit last year that nothing has been done, and actually the dump is falling into more disrepair. Instead, he allows his family to stay on a building site. Yes he's in the Marquis apartment, but still, the place is literally falling down around them.
Grunt; you should have just popped over for Easter Sunday with the kids, then got the hell out of that heap ASAP.