With an open mind to all possibilities, the skipper's call from a fraudulently-obtained phone story appears to be gathering momentum...
I think the media (and possibly the Malaysian government) are making too much of this. We know that Caprain Zaharie was somewhat politically outspoken; it stands to reason that some of his friends would be likewise. With a healthy amount of paranoia, an outspoken critic of the government may well prefer not to make it too easy for the government to listen in on their personal life. Bear in mind that Anwar himself has twice been imprisoned not for crimes against the state but for (alleged) aspects of his personal life.
I'm not suggesting that the Malaysian government is in any way complicit in the disappearance of MH370, but I wouldn't be the least bit surprised if they found some way to leverage it for domestic political advantage. We have already seen attempts to link the incident to the good captain's political alignment.