He was wronged in that students lied about feeling "afraid" and "terrorized" and "unsafe" instead of simply saying that they were offended. They made these claims because they know that these words put into motion an array of employment-related and/or pseudo-legal threats like Title IX suits. They lied about how they felt, to a third party such as the university administration, instead of responding truthfully to the person they disagreed with. The first problem is that there are structures in place that reward this behavior, and the second is that the current breed of leftists feel absolutely no shame in using them.