The article doesn't blame WhatsApp, any more than a story abut a murder in Tulsa called "The Tulsa Murder" would be blaming Tulsa. WhatsApp is not the victim here.
The proper analogy is more to The Cragslist Killer
the brief was to discourage use of whatsapp. they were given the title. they just didn't write exactly what the ghcq boss that gave them the story to write wanted.