This article is just an opinion piece and junk at that. If they have any data they fail to properly cite it beyond their own economist article which also fails to properly cite sources. I find this so frustrating when reading articles these days. All to often they just write "in a recent study ..." with no mention of what the study is, who did it, or a link for you to read it.
Suicide is a huge problem and very complex topic and this article answers to "Why" are quite flippant.