Well said. It has certainly reminded me of the importance of an exceptional lookout in any class of airspace.
I am not making any comment about the circumstances that led to this tragic accident as i do not have enough information to make any judgements,but I do remember on my very first lesson of my PPL course in Australia my instructor told me the first rule of flying is A.N.C.
Aviate,Navigate.Communicate.and I have always taken that to mean that flying the plane whilst keeping a lookout was a fundamental principle of safe flying,but as I said I am NOT suggesting that the pilots involved in the tragedy were not doing exactly that,it is not for me to judge,others with more knowledge will do that.
All I know is that it is a tragedy and people have lost their lives,and that is the fact we must all remember,regardless of the cause of the accident.
Condolences to the families of those involved.