Yeah, but this test would be void if the dummy is already blown apart at a molecular level.
Maybe they were already observing Venezuelan economy silently long before it was blown apart. If they are then this test would not be void since they have already gathered a lot of useful data.
The conspiracy theory proposed was saying that they would experiment on how a crypto would influence a falling country. So based on that, the experiment is void if the country is blown apart before you manage to introduce a cryptocurrency
No, not necessarily. The crypto could be introduced either before, during or after the crisis, but that's not the point. The point is how people react to the crypto, and how willing or hesitant they are to adopt it. It's perception management.
Sure, they could just digitize a currency and try the same thing. But the difference between a digital currency and a crypto comes back to again the perception of the people. No one trusts the government nor the bank right now in Venezuela so they need an alternative. Establish an alternative the operates on the same level as bitcoin (at least to the layman) and they'll abandon the one that doesn't have a government guarantee.