If it was such a hoax, why did Apple release a patch.
Apple released the Trojan definition for FlashBack SIX MONTHS before Dr. Web's hoax. Your linked article is dated April 4, 2012, but Apple closed the Flashback Trojan in early November of 2011. It then added the definition of the Java Flashback Trojan to the malware files and from then on OS X will identify it and warn the user, require an Administrator name and password to all the user to continue downloading it, then do the same to install it, and then again to run it for the first time. It take industrial strength stupid to get one on a Mac system. Such definitions are pushed out daily or as needed on OS X so that EVERY Mac user gets it. When one is added, Apple OS X will also identify any variants in the same family. There are currently 67 known Trojans and variants for OS X in eight known Trojan families.
Apple, because of the numerous vulnerabilities in Java, had already banished Java as an included system in OS X in 2009.
Dr. Web latched onto Flashback's Trojan as a convenient Trojan that was in the public's mind to build their Hoax scare on.