Libra is a good way to let the people be aware about cryptocurrency.Instead of being a threat to bitcoin and other altcoins,it might be a good help for some people to get to know about bitcoin and invest in it.They might even trade using bitcoin and some potential altcoins.So Libra and Bitcoin are ultimately different when it comes to their usage.
Libra is a tool of noise, to attract people and let them know more about crypto currencies, globally. By now, Libra has finished its mission for crypto currencies in this period. Without Libra, I believe that bitcoin would have gone longer journey to hit $14,000. So, I am thankful to Facebook team, especially who are in charge of Libra project.