So, unless we think they are acting as moles in the DoJ, I don't see much issue with it, unless they have a conflict of interest such as being an investor in the industry or the like.
I'm just playing devil's advocate here, but actions by the Mega staff may have triggered such a reaction. Its not unheard of for something "in the works" to trigger the takedown.
A) That we ought to be aware of the genesis of these conspiracy theories. I believe it's based on the influence of objectivist bias (objectivism being common amongst hackers). By human nature, we perceive the world in a way that agrees with our philosophy. For better or worse, that is called bias.
B) That we ought to be singularly focused on the subjects of fair use and free speech.