It's doesn't say that he worked them 24 hours a day though. I'm pretty sure the crews behind thses productions are union so he'd had to pay them alot extra if he did. So If they clocked in and clock out at the same time as usual it doesn't seem like a big deal. Just means the leads got to eat more than usual because they weren't taking 50 takes to do one scene. I guess you could make the argument that doing that many episodes in that little time does cut short the number of days they are on set earning though.So I guess the black crew has to take an L since their being paid by the hour/ day and not by the episode.
He can't get credit for hiring black people where he does this.
He's probably still taking people's writing credits too.