I replied to another comment with similar stuff but, whether or not this helped anyone we can never truly know.

It did not help the people in the center that day presumably because they were not released. Who knows if they were aware of what was happening outside and how they would have or did feel about it happening.

At the very least, this raised awareness and showed that people are willing to speak out publicly against fascism regardless that the government is threatening any and all who speak or act against them.