Actually, no. Resisting Arrest is where you struggle around trying to get the cop off you. "Dearresting tactics" that they're talking about are organized attempts by those around you to interfere with the arrest. They swarm the police officer who is arresting you, try to drag you out of his grasp and if successful, immediately interpose themselves between you and the cop while you are ushered away quickly and lost in the crowd. The "de-arresters" will then disperse quickly as needed.
General Black Bloc tactics based on the principle that the law will focus on you as a culprit rather than your group as a whole, enabling one person to strike someone (a crime) and others to pretend they have not, even though they are a vital part of the crime being committed. You can see this in endless videos where a coward assaults someone and then flees back through the protecting mob. There are bonus media points if a victim or police officer then attempts to get through the "peaceful" protestors.
Not that there aren't problems and corruption with food aid programs; but honestly I'd be more alright with donations that actually went to help people rather than fund Marxist and racist training programs and jaunts for NGO leaders. It's why Trump's pledge to help African American communities pisses off BLM leaders. He'll actually be putting it into programs that stimulate business and law and order in these communities, rather than writing a blank check for some BLM-sponsored "training program".