Depends on your definition of "Craze"
People's interest in any given item is cyclical, as of right now consumers have grown accustom to the easy accessibility of high quality AU corals. It was the same way with micros when they were abundant, then once the supply wanes people start to become more interested again.
Don't let the current abundance fool you, I'd be surprised in AU stays open for exports another year or two. Brightly colored corals will always be a premium regardless of species, now is a good time to take advantage of the better prices brought out by the abundance IMO =)