I don't take issue with the shutdown since Megaupload was being used as a gigantic, unregulated store for pirated content, and that does take money away from content creators. Instead, I go out of my way to purchase independent content to support artists outside of the mainstream system, and any mainstream content I do want gets purchased digitally, which ultimately contributes to a lessening of relevance for the traditional distributors represented by the MPAA. Home film releases come out out sooner and sooner after their theater runs, and streaming services like Netflix are so popular on living room devices that Microsoft claims video streaming surpasses game-playing in terms of hours of usage on the Xbox 360. Whatever traditional structure the MPAA is protecting has already been supplanted by legal mediums.
In other words, Megaupload isn't necessary--the fate of the traditional movie industry has already been sealed by companies who embraced the internet.