That's clearly abusive, and those workers needed protection.
If someone loves their job and wants to work 50 hours; or can work and enjoy the occasional 60 hours, well, it's their choice and they should be able to.
But most people do not enjoy that, and recognise it's not healthy, and do not want to do that, but are pressured either by bosses or by work culture. And so this flexibility has been removed because some companies were not self regulating.
60 hours a week is 10 hours a day, with one day off. That doesn't include travel time. Let's say 30 minutes each way. Does it include lunch hours? (UK: No, but tea breaks are paid). Let's call lunch another 30 minutes. That's 11.5 hours a day. 7 hours for sleep makes 18.5 hours a day. That leave 5.5 hours a day (plus that one day off) for everything else; your parents, your partner, your children, your friends, your bills etc, your life.