While I don't agree with OP about replacing an entire system overnight. I do remember a friend who worked on a trading floor, and when they had bugs, their man

While I don't agree with OP about replacing an entire system overnight. I do remember a friend who worked on a trading floor, and when they had bugs, their manager would say "the traders are taking a 30 minute lunch, you have that long to fix it" with the clear implication that they'd be fired if they didn't. So I'm not sure if I know that the state of the art for trading platforms is as rock solid as everyone is implying, and Robinhood seems to be way far off from whatever gold standards there are, see infinite leverage bug. So I don't think it's crazy that they move quickly to fix it. I'd never be able to stomach the pressure, and I wouldn't wish it on others, but it doesn't seem crazy.