You obviously don't get it. The goal of the professor was to find out how far he could go, i.e; who among his students were sheep. If he was trying to make an anti-religious statement, he should have had his students write the names of all the prophets (Mohammed, Buddah, etc.) and Jesus Christ. Then ask the students to stomp on the ones they don't believe in. But, he did not do that. Did he?