I was curious how large the crowd would be. A large crowd would mean that this is a topic that is affecting Palestinian Arabs enough to make them want to spend several hours attending; a smaller crowd means they really don't care.
In the end, the crowd was in the thousands - but not the tens of thousands. It looks like just the government workers and a few others, but this is not a groundswell. This is tiny compared to the rallies regularly seen in Gaza for Hamas and Islamic Jihad.