Sucks if you need to run though. But usually if you're wealthy in an unwealthy/poorly banked country and can't leave for some reason, you keep your assets in the place you'd run to if you really had to.
I'm not saying everyone should store their savings in bitcoin, but I am saying it serves a very real, potentially life changing purpose for some people and that shouldn't be discounted.
Holding physical cash is just asking to have your life savings stolen in places that are poor enough to not have bank access.
Regardless, the article you link does not actually claim what the title says it claims:
> PYMNTS research reveals that many consumers (24%) see the option to send funds in cryptocurrency as a key motivator in choosing a payment services provider (PSP), in fact.
That does not mean 24% of cross-border payments are made in cryptocurrencies. It means that 24% of people think that it's important that their payments provider supports cryptocurrency as an option (and says nothing about whether or not they exercise that option, or even have an account with such a provider).
Also, even if this were true, that does not mean you are correct in stating that cryptocurrencies are about payments. It's pretty clear that far, far more people use them for investing speculation.
Their assertion:
> There are a lot of much better assets to buy as an inflation hedge
.. was in indirect response to a parent comment:
> Bitcoin is not really a 'young technology' anymore, and the only thing it has enabled so far is risky, unregulated investment strategies, and an staggering amount of crime.
I think clarifying that there is a material population of crypto users who use Bitcoin as a currency not an investment is material in this context?