The timing of the shutdown likely had more to do with:
(1) Megaupload suing Universal, in a lawsuit they were likely to win, and were then forced to drop the lawsuit after the raid.
(2) The raid happened just prior to Megaupload releasing a new service called MegaBox, which would allow artists to legally sell music directly to fans, allowing artists to keep 90% of the profits, as well as introducing a feature that allowed artists to make money off music that listeners were streaming for free.
It turns out the FBI had been spying MegaUpload for the past 5+ years
With the fact that they don't have any evidence to present a case that there was actual illegal activity going on that required the raid, I would say it's more likely that the pressure for the raid to come when it did came directly from the entertainment industry / UMG.
(1) Megaupload suing Universal, in a lawsuit they were likely to win, and were then forced to drop the lawsuit after the raid.
(2) The raid happened just prior to Megaupload releasing a new service called MegaBox, which would allow artists to legally sell music directly to fans, allowing artists to keep 90% of the profits, as well as introducing a feature that allowed artists to make money off music that listeners were streaming for free.
It turns out the FBI had been spying MegaUpload for the past 5+ years
http://news.cnet.com/8301-31001_3-57368523-261/feds-we-obtai...
With the fact that they don't have any evidence to present a case that there was actual illegal activity going on that required the raid, I would say it's more likely that the pressure for the raid to come when it did came directly from the entertainment industry / UMG.