"go to the source"

[gejohnston]

4. post hoc ergo propter hoc

http://www.nizkor.org/features/fallacies/post-hoc.html
If Israel in fact changed that policy, they also did a number of other things. For example, they worked to remove the stigma of getting help, which exists in every military. Given recent photos of street scenes of Israel, I doubt the weapons policy has actually changed.

and there was no expert cited in the article. Dr. Miller, I missed his specialty, works for an economist named David Hemenway, who writes shill studies, in a department funded by the Joyce Foundation. In Robert Kennedy Jr.'s coined term, he is probably a biostitute. He is not an expert in the field outside of writing "studies" that, like Hemenway's, never seem to find their way in a peer review publication. He might be an expert internist, but suicide has nothing to do with internal medicine.
https://www.hsph.harvard.edu/hicrc/faculty-and-staff/miller-matthew/

BTW, IDF suicides doubled in 2014.
http://disastermilitarymedicine.biomedcentral.com/articles/10.1186/s40696-015-0007-y