Very sad for all concerned, especially for the families of the two deceased Learjet crew.
Just an observation here, in days gone by this task would probably have been done using a "second line" military aircraft such as a Canberra, OV-10 (Bronco) or perhaps, going back far enough, by a Meteor. All of these aircraft would have been fitted with ejection seats......had they been flying an Alphajet or Hawk their lives could possibly have been saved.
Although such collisions are fortunately rare the risk of such operations is in my view higher than say corporate or airline ops and I question the suitability of some of the aircraft sometimes used to support what is essentially a military flying mission, all no doubt driven by trying to save money not necessarily making the operations safer for the crew. Time for a rethink?