And unless he got back right away and bought some more bitcoins to recover that loss, literally the same day, then he would be out a lot of money. Early birds do not realize the bigness of a project they are in, because it is rarely that big after a decade.
Nah, he got those Bitcoins mining in the early days, so he didn't pay directly (other than electricity). In his words it was "Free Pizza".
Also, it was not all the bitcoins he had, so it's all good. Plus, he only paid the market value of the pizzas, maybe a bit more, but something like twenty dollars or so in Bitcoin. He didn't pay 200 million for the pizzas, that's just nonsense.
By your logic, every single purchase you've done in your life after 2009 was a colossal waste of money because you could have bought Bitcoin instead.