Eh. Consider the hugs through the prism of journalism ethics. Were they transparent? Yes, there’s video (see above) of the hugs, which took place in front of the cameras; any clandestine backstage moderator-candidate hugging is strictly forbidden. Were they evenhanded? Yes, both Sanders and Clinton received hugs of very comparable warmth, duration and hand-pats. Were they prejudicial? Nah, coming at the end of the event, it’s hard to say that the affection received by Maddow influenced the questions, which were solid.
All that said, this is a fair point:
Update: Maddow has tweeted about this matter: