I guess he needed the money urgently which is why he converted it to FIAT though this wouldn't have been an issue in some countries where there is a clear premium on the conversions.
Also, he could have stuck to stablecoins like USDT etc if he was so worried about the volatile price movements of crypto.
If someone is gambling in a casino or trading in a centralized exchange, they must be aware that there can be delay for any reason in withdrawal. I don't know why he had such a reaction. I had an 48 hour delay from an exchange and a never-ending delay in ftx lol (had a little fund though)