I thought your response was good. There's no requirement of sympathy. My critique was centered around a tone of "blame yourself."
Not directed at you, @Anonymous, only inspired by your response... I get that I've walked some fine lines here. For instance, I chose not to directly point a finger, so someone who didn't do what I pointed out may question themselves; to actively point out leans toward sitting on a seat of personal judgement and say 'j'accuse," but to not point out leaves one uncertain if they're being judged. I tried to not come across as judging, or at least not condemnatory, but daring to call out is an act of judgement, whether intended or not, that's why I try to focus on the action and not the person, to say "this is how I perceived it, and my perception didn't feel good." In these ways, I make an imperfect but highly conscious effort, and maybe one day I'll find a more effective way to say things.
And that's the other fine line -- daring to speak, to address something, and to defend another, can be perceived as judgement and condemnation, and sets up the speaker as a target who better be able to take what's likely coming; on the other side of the line, say nothing, do nothing...be nothing. I function from the tenet that the admonishment of a friend is good medicine, and I also know that medicine can be good but it can taste bad. While I'm an adept communicator, I am often lacking in the ability to make medicine sweet, so instead I use what I do have, sincerity and directness.
Sincerely, and directly, I was troubled by one particular trend in the thread, enough to see a line had appeared to me, and to respond by identifying it out loud and standing on the side of the OP. I'm uncomfortable with the line, and what actions it seems to me to provoke.