No, it isn’t. One side is trying to exercise free speech. The other side is trying to shut down free speech.
How is that an attack from both sides?
Opinion | Berkeley Is Under Attack From Both Sides
Ms. Coulter responded by announcing she would speak on the date on which she had originally been invited, but in a public space on campus called Sproul Plaza. But even though the Berkeley campus police department had called for reinforcements from across the state – at enormous expense during a time when California universities face a severe budget shortfall – it could not safely secure the public area.