Am I the only one to think that if the exact same conditions were repeated, the accident would certainly not occur? The likeliness of a mid air collision at those speeds is just amazingly low; at 360m/s just 0.1s later there would have been no physical contact! maybe the turbulences would still have destroyed the plane behind, but nonetheless, their time had come.
When money is involved, it's always worth IMHO to evaluate how many lifes can be saved in what circumstances.. Correcting this situation with high cost installations is not worth it even if I was to be on a fatal path, me thinks. This money could save much more lifes applied to other issues.. 'tinfoil hat on'