I found out that since 1969, falsely yelling "Fire" in a theater or other venue is not against the law. The SCOTUS decision in 1969 said "for speech to break the law, it can’t merely lead others to dangerous situations. It must directly encourage others to commit specific criminal actions of their own. "
Would what she said fall under that ruling? I have no opinion as courts often interpret laws different from what I believe it to say, i.e. 2A.
Well, just last week Nancy Pelosi said that you can't yell "wolf" in a crowded theater... that is not protected by the First Amendment. I wish I was kidding about that, or making it up, or that it was fake news. Unfortunately, it's recorded and available for all to see just how intelligent and non-dementiaed our U.S.
Senate House minority leader [Edit: How could I confuse Pelosi with Chucky Schumer?!] is (I wonder just how long the list of words (animals only?) is that she believes you can't yell in a crowded theater?)

:
Here is a brief write up on the quote, the actual law (as you mention), and just how ignorant (or dementiaed) Pelosi is:
http://www.nationalreview.com/corner/450809/yelling-wolf-crowded-theater-nancy-pelosi-flunks-constitutional-lawThird, the quote is wrong. She’s obviously referring to Oliver Wendell Holmes’s famous statement in Schenck v. United States that “The most stringent protection of free speech would not protect a man in falsely shouting fire in a theatre and causing a panic.” Fire. Wolf. Whatever. It’s not important compared to the next point below.
Fourth, anyone who quotes Schenck is quoting bad law. In fact, it’s one of the most “odious free speech decisions in the Court’s history.” [Link in original:
https://www.theatlantic.com/national/archive/2012/11/its-time-to-stop-using-the-fire-in-a-crowded-theater-quote/264449/] The court upheld the Espionage Act conviction of the secretary of the Socialist Party of America for writing and distributing a pamphlet opposing the draft during World War I. Schenck could never be sent to jail for this conduct today.
The proper standard is outlined in Brandenburg v. Ohio, and that case is completely silent regarding the wolf threat. Under Brandenburg, speakers can advocate violence even in front of an armed crowd unless their speech is “directed to inciting or producing imminent lawless action and is likely to incite or produce such action” (emphasis added). Finally, while the law obviously prohibits any member of the alt-right or any other group from engaging in violent acts, the Constitution does not permit the state to shut down an event simply because other people threaten the speaker. That’s an extreme form of heckler’s veto, and law enforcement is obligated to protect speakers, not silence controversial speech.
In other words, don’t ask Nancy Pelosi about the First Amendment. She has no idea what it means.