That doesn't tell us how he was assigned to that group. It might have been a dice roll. Or maybe he chose to be in that group.
Why it’s wrong is debatable. But at least for me it’d be wrong because honestly... that would drag up a lot of psychological trauma for me. Like “I need to take some time off work” bad.
Even if you can predict who that will happen to.. and you try to account for it.. there is no margin of error here that’s acceptable, especially when the material in question could be completed another way.
So yeah. This is a really, really bad look for the Googs here. :(