Because Bitcoin first and foremost as a permissionless, censorship free, money gives us for the first time in over 80 years, Monetary Sovereignty.
There are so many great points in this article, and the writer is right. This is why I've been telling people (once) that the price does not matter much. Bitcoin will work, be it at $270, $100 or $1. I doubt that we would ever reach a point in time where everyone would stop using the system at the same time. Being able to manage your own money, whenever you want and use it however you want, is what people do not realize properly. Until the bank(s) does something to them, they prefer to be deluded (thinking that their system is good).