This is a fair question, and maybe important.
It's because I like how she made this (overblown, staged) point.
She couldn't have made it were it not for the fact that free speech is hindered in this way, in these locations.
She is a comic (like Carlin, or Borat) but she couldn't make funny out of this if there weren't a real thing to exaggerate.
You can hate her methods all you like, or even her level of honesty, but these stunts show an ugly double standard. I don't know that they CAN be shown in a way which isn't ugly.