Matthewrudy is right. The legislation for regulating Cantonese in broadcast and print media was enacted in Guangzhou, not Hong Kong. My mistake.
No politicians would say outright that they want to eliminate a major language, but they could drastically reduce its usage by imposing specific restrictions. And not just on spoken Cantonese, but variations of written Chinese other than the official simplified characters.
I wish I could post an original article here with more details, but for some reason even the bilingual news sites don't cover this story in English. Wikipedia gives a pretty good summary: http://en.wikipedia.org/wiki/2012_Anti-Cantonese_regulations. The sources are all in Chinese (the only English link appears to be dead) but Google's translations weren't too bad.
