I am not sure why they felt compelled to attend other than some misguided sense/display of chivalry- it got all the optics of, and will inevitably be misinterpreted as dancing on one's grave.
Honestly the guy is dead, time to leave it all behind and let his own circle grief him for what he is. The rest of us who knew nothing about him other than his public persona don't - and more importantly, shouldn't call him a saint and grief with them just to make us feel better about our own supposed humanity. Think - who are you doing this for, really.
AoD