Earlier quoted context omitted.
Yeh, it failed so hard no one even uses it anymore.
Are you able to point to a single case where Bitcoin was used as legal tender in an every day business transaction? By this I mean, can you give an example where someone ordered a cup of coffee with Bitcoin directly and not through a proxy?
A counter-example: can you come up to a coffee shop with a gold collectible coin, chew a piece out, and use it to pay for your coffee directly? You need a proxy in form of a pawn shop for that.
Instruments are instruments, if it is not used for every day business transactions doesn't mean it is not heavily ab-used inside it's niche