All of the evidence we have points to the depth at which these corals are being collected as the problem causing factor. There is no rogue microbe attacking healthy elegance. There are many opportunistic organisms that will infect an elegance once it is damaged, or weakened. Which is what Borneman found. IMHO, there is no mystery here. The elegance we, in the states, receive from Indonesia, are collected at depths exceeding 100ft. The PAR, or amount of light, the coral is exposed to increases many fold as the coral is brought to the surface, during collection. This can causes physical damage in corals that posses zooxanthellae. Again, Borenman found this damage.
Thankfully, this is an easy problem to avoid. When we purchase an Indonesian elegance we can rest assured it has suffered damage on a cellular level. The odds of the coral falling victim to an infection, and dieing, is incredibly high. Australian elegance have proven they typically don't have these issues. All we have to do is stop purchasing Indonesian elegance, and buy exclusively Australian elegance. This not only saves the hobbyists money. It also stops the needless slaughter of animals. If we could shut down the exportation of elegance from Indonesia, it would give the population time to recover, and these corals could return to the shallows where our "hardy" Indonesian elegance were collected, back in the good ol days.
The bottom line here is that we MUST stop buying Indonesian elegance. The whole problem stems from over fishing to supply our demand. The only way to cure the problem is to remove the demand.
