Because it doesn't have any power.
[spoiler]Wii U is Supergirl(cousin to the more powerful Superman)
PS4 is Superman(pretty well rounded but not quite the most powerful ever, the majorities favorite)
PC is the Flash(has everything, strength, speed and is loved by everyone)[/spoiler]
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No batman is the WiiU. He's the console we deserve but not the one we need right now. So we'll hunt him, because he can take it. Because he's not a hero. He's a silent plumber, a guardian of hyrule,.................. a dark knight.