No, CF frames don't explode to smithereens out of the blue as evident from the millions of bikers that already own them and ride them everyday (If CF frames are indeed "dangerous", all the litigation that would have resulted from them would have wiped them off the market already), but Ti frames WILL outlast most (like cockroaches in a post nuclear war world), if not all other frame types because of the super tough nature of the material and it's fantastic resistance to damage from the elements. So IMO Ti wins overall compared to all other frame types regardless of cost.
JMOs

Chombi