I think we can feel for the tragedy even when people did something inappropriate… when a child hurts himself, you don’t start chastising him for not following safety rules, you first take care of his pain….
what is not appropriate is blaming others – government, police – or even say “we do not understand your ways Hashem, but we accept it” rather than looking at your own behavior. It is understandable in the face of the tragedy, of course.
R Avigdor Miller talked about a parent who let a strange poor person in, gave him hot tea, then went to bring another cup of tea, while leaving a kid in the room with the stranger who poured hot tea into the kid’s face.. do not say “I do not understand this tragedy while doing a mitzva”, do say “she did an aveirah of leaving a kid with a strange while doing a mitzva and was punished for that”…