> Cryptocurrencies aren't anonymous.

Monero is.

> They also don't eliminate payment processor risk

Of course they don't magically solve all problems, but that doesn't make them useless.

> I'm skeptical how many people in Venezuela saved their fortunes via Bitcoin et al

I've read some article from people who did it, but I don't think it's common.

The problem with leaving the country is, how do you take your assets with you? You cannot easily move a house, and you will get searched at the border and your gold, dollars, jewelry etc will get confiscated if found. With cryptocurrencies you can theoretically move any amount, by just memorizing 12 or 24 words, by hiding a piece of paper or by encrypting it and placing it online somewhere.