It isn't shocking. The point of 99.9999% of all cryptocurrencies aren't to make anything useful. They exist to get the creators rich. All of the rubes that buy into these scams will simply be sending their former wealth through a massively inefficient rube goldberg contraption that lines the pockets of those at the top of the pyramid.
The creators don't need to understand monetary policy, economics or scalability. The creators just need to understand enough deceptive marketing to get some suckers lining up to buy. The smart ones also know just enough ways to pocket their newly acquired fiat wealth and escape without getting caught by jonny law.
Visa network is centralized and owned a company. Bitcoin is a protocol with no central ownership. Additionally, visa network is currency-agnostic and enables payments in any currency they want to support. Centralized services like Visa can work with Bitcoin in various ways, for example the settlement transactions can be done with Bitcoin.
Additionally Bitcoin has been developed from the start with various centralized services built around it - without those services it wouldn't be popular at all. Any centralized service can scale as well as Visa. Though where Bitcoin provides value is not near retail payments, and while there have been bitcoin-reloadable visa cards I think that is not very interesting use-case.
Where does it provide value? If it's bad as currency, what's the use case? It certainly fails store of value test (unstable, high volatility).
The general lack of awareness of how traditional currencies are established and maintained is just shocking.
Also, make sure you understand scalability. As much as the crypto community likes to poo poo the Visa network; the Visa network handles an order of magnitude more transactions per second than the current cryptocurrencies can handle.