Did Swissair enjoy the financial backing that EY has?? Does anyone know how rich EY's shareholder is?? The sovereign wealth fund for Abu Dhabi alone (not UAE) is US$600bn+. In layman terms a sovereign wealth fund is sort of a state savings account (money for a rainy day).
Now take into account their investments and other forms of income and having the 6th biggest oil reserve etc plus the fact that their population is a mere 1.5mil and you have as CNN labelled it a few years ago, the richest city in the world.