The "blue-eyes/brown-eyes" experiment was essentially a lighter variation on the better-known "Robbers' Cave Experiment" in psychology. You arbitrarily divide people into two groups, like "blue-eyed folks" and "brown-eyed folks" (in other words, the arbitrariness is quite overt and visible) and then look at how conflict and cooperation play out between the two groups. That's a far cry from what happened during OP's "diversity training" exercise.
(It turns out that conflict won't necessarily arise in that kind of situation, but that it's exceedingly easy for a bad actor (such as the experimenter herself) to manipulate the groups into hating each other. Reference https://www.theguardian.com/science/2018/apr/16/a-real-life-... )
(It turns out that conflict won't necessarily arise in that kind of situation, but that it's exceedingly easy for a bad actor (such as the experimenter herself) to manipulate the groups into hating each other. Reference https://www.theguardian.com/science/2018/apr/16/a-real-life-... )