The attack in the article is not yet up on the IMDB Live Piracy Map: http://www.icc-ccs.org/extra/display.php?yr=2008. but it seems to me that with the quantity of traffic in that area, it would be sensible to provide IR night and day satellite monitoring of all vessels in the area. Most of the attacks shown were not coastal, but mid-channel.
Also, mercenary armament packs and crews could be made available to ships making the passage, transferring from incoming to outgoing vessels in the danger zone, in a revolving door tactic. It wouldn’t take many pirate vessel sinkings to discourage attacks. What would be the cost compared to the loss of a multi-million dollar vessel or ransom money or crew lives? Insurers should be vetting this situation a bit harder. The maritime agencies of the shipper nations could be putting their heads together more effectively.