You don't get it - nobody had EVER publicly traded Bitcoin for anything with a fixed fiat value before this.
Because of that Bitcoin had a literal value of $0.00000000 right up until the point where someone bought a couple of pizzas.
I remember reading an article about the guy who bought the pizzas for 10k BTC and he said not to worry, he had a many coins left - this was when it was worth plenty of dollars if I remember correctly, which I might. He had millions of dollars in crypto when I read that and I won't be surprised if he still has most of it.
Bitcoin has literally never had a value of zero, ever.
It is possible it may one day but we have never seen that day.
Everything is worth what someone will pay for it.