I'm familiar with the definition but I learned today that I was mistaken in the translation. The articles I had previously read and linked said bitcoin was legal tender but the actual legal document provides a slightly but importantly different definition.

If you travel abroad you may have to exchange your currency to pay for a meal, because your coin is not treated equality to legal tender locally, and the defining characteristic is that it settles the debt at the time of exchange. I believe that's a function that cryptocurrencies fulfil by design and if the court states they are to be treated equally to legal tender that seems to prove my point.