My heart goes out to the family, and I'd be lying if I didn't say I'd probably feel exactly the same way they did/do. I would be incredibly angry seeing this as the last place my child visited and seeing people not encouraging her to keep going, and this seems like a perfect target for blame.
But I would hope once things settled they'd realize something:
this site is a needle in a haystack when you search "suicide" on google. 99% of the websites out there have sui hotline numbers all over them, and are strictly pro-life. Their loved one had access to all of these, their loved one undoubtedly came across these resources, many times. I have all the chances I could possibly have to reach out right there in front of my face—there's a hundred different hotlines—I do not want to use them because I have no interest in involuntary commitment. Maybe if you want to take aim at a system, take aim at the one that doesn't allow people like us to truly express our feelings without being imprisoned.
The only thing this site has helped me with is feeling less alone, and knowing that if and when I truly do feel backed into a corner because of my life circumstances, there are ways to go peacefully. I would never encourage anyone who had even the slightest shred of doubt to ctb—in fact I would tell them to ride out that doubt for as long as humanly possible, give it another go, because this is such a permanent decision—but if it unfortunately comes to that and they are 110% sure, I wish them peace and safety in the decision they alone have made for themself. I hope that family finds peace one day without taking aim at innocent bystanders who are also "victims", by their own definition.