It is symbolic also, a message : you maybe have fun in this paradise pool, but your foundation is crumbling, your floor, as a country, as a society, as a community, is crumbling, and you are not aware of that, yet. Wait and see.
It is not the first time that floors are crumbling in Israel. I remember, some years ago, one floor at a dance party who crumbed, sucking with it many people. The horror of the situation was very strong, let me tell you. I saw this on tv.