Nice point 120.4
It may turn out that, as normal in these circumstances, the blame is shared around.
But I really feel for the controllers involved, whatever happens, because I know that they will feel (probably correctly) that even if they acted to the letter of standard ops proc, they could have done something else, something extra, and averted this.
I'm very sorry for all involved, and us too. The last couple of days at work have been strange. Crews nearly never miss a call now, and everyone's a little bit more circumspect and sombre. In a way I look forward to the day the sick jokes start, then I know we will have started to recover.
But maybe it'll take us all some time.