That it is. Some of those folks traveled a long way to attend and aren't going to go home without making their feelings known. And so far She Who Must Not Be Named has shown no particular inclination to placate them.
She Who Must Not Be Named doesn't want to even acknowledge the fact that the protesters exist. She's no doubt hidden away self-medicating in her Safe Space, pretending they're not there, because the last thing she wants to do is get to face to face with the protesters.
Especially on Day 4, the climactic moment when the sh@t hits the fan big time, where the unhappy Bernie supporters sulk off and drift back to their dorm rooms, and the Black Bloc anarchists really come out and strut their stuff...