I won't say "that's just money". We don't know how he worked hard for that but it's also his fault for gambling that amount within a quick time frame.
The impact mentally that it has given will be there but if he wants to recover, he shouldn't let that disappoint put him into that situation forever since there's still a way to recover it through working and other legitimate means.
To be objective, this amount is not critical for developed countries. In fact, this is income for 5-6 months (I can be wrong, but not much). Therefore, I would agree with the statement that it is just money. They can be earned again. And by the way, everyone who, for example, did not buy Bitcoin or Ethereum cheaply has potentially lost much more

You have the point but I'm detailing about the pointer about that "it's just money". Well, with such amount, if you're okay to lose 5-6 months of your income within a single night within a few minutes, that's still would hurt you. But you have to carry that on and just move on after wards.