I don't think this is the first time that the trainer got all upset about employees not being 100% on board with their way of thinking. My boss made what he thought was an innocuous comment to this same person a while back, and they complained to HR about it. One of those hallway statements, wasn't even in a training session.
If I'm ever asked to participate in this training, I know I'd be a target. Straight white male in a management position, in an industry that is dominated by women, POC's, and other perfectly normal non-straight white males