> I wasn't there and don't know all the facts, so I'm not going to attempt to assign blame in this specific instance.

Didn't you already though? You said "pilots [..] are supposed to be keeping a constant visual watch for traffic", and considering one of the parties has a filed flight plan and had their transponder turned on, I can't really read it any way except "the pilots of the military aircraft didn't do what they were supposed to" which is implicitly blaming them, or am I missing some angle/interpretation of what you said?

I don't believe that would be incorrect, because of the context, but I'm curious why'd you suddenly hesitate to say it seems to be the fault of the military here, yet previous comment made that hint implicitly.