Big rainstorm overnight dumping about 3-4 inches. A lot for this area, and drainage may have been an issue. Aircraft may have hydroplaned. It's probably fortunate that it ONLY ran off the end instead of sliding off the runway at an odd angle.
Sometimes you're sending good money after bad, but I'm sure that underwater search techniques have improved with the MH370 search.Maybe we need to wait a little longer until a a notable improvement in underwater search is possible. For good, or bad, it's always good to know why an aircraft disappeared.