Presumably. The article just posted above implies that the trigger for adminstrative action was a handful of student complaints about the content of the activity, not about "blocking traffic". If an anti-war group of a dozen students had made a habit of gathering in the cafeteria of the 2200 student school for 10-15 minutes in the morning, before the school start time of 7AM, to share the latest stories of "innocent Iraqis killed by American soldiers", who, would they have been told they had to relocate the activity to an assigned room? Of would their argument that it was important to "make other students aware of the issues" have sufficed for administrators who happened to agree.
Frankly, in a school this size, I have some trouble believing this is the first time that a group of a dozen or students has made a habit of hanging out together in the cafeteria for a little while in the mornings before school started.