I believe that in this case you have considered a very small shortage of crypto currency (This is not even a drawback, since if you keep the crypto currency in a cold purse, you will not be stolen by anyone). Pay attention to how many advantages the whole crypto-currency market has.
I mean we have to understand what his sentiments, he just lost a quarter of a million dollars!!!.
Its really a not just a hard but a high price to pay. Maybe that's his life saving or something that's why its really hard to imagine losing it to a hackers, I mean a jerk. If I where in his shoes, I would also be fuming mad as hell.
However, we all know that's irreversible, maybe next time its really safe to have a hardware wallet to protect all your funds. However, its time to get back at his feet and restore and bring back his confidence to bitcoin and crypto as well. I also lost a lot of bitcoins in the past due to my stupidity and I was really down at that time. But some words of encourage help me stand up and forget everything and I think I have recovered from those emotions.