Agreed. They made a mistake and they should fix it, but firing people just for doing a single mistake isn't the right the way to go. Ben has treaten Steve and Tim bad with this response. Ben should have talked first to Steve and told him that he should have a 1:1 talk with Tim about the problemm, so they could figure out why Tim hadn't done any 1:1 talks with the team. Maybe he has a good reason and you could figure out a good solution to avoid this in the future.