I read it, but I'm not sure how much I agree with that.
For example, if you're paying 3-10% transfer fees, that is a lot... but if your rent (the biggest expense for most people) went down 85%, then you're still extremely happy to be living outside of the US.
Let's say your transfer fees are 5%. If you're spending $2k/month, that ends up being $100/month - not an insignificant amount of money.
But if your rent went down from $4500/month to $500/month, you're now saving $4k/month.
Even if we adjust the numbers, the math still works out in favor of Argentina, even with current price hikes.