They're just pissed off because Apple got caught. Shareholders like that are always on about how a corporation must put profits ahead of everything else. They elect boards of directors whose views are to put profits ahead of anything else. Then they get all pissy when the laws and ethics they trample on their way to bigger profits rise up and say "no, you can't do that".
Now if only there was a way to put the shareholders on trial for getting what they asked for.