The case of Venezuela is very different than the rest of the world so it's better not to compare as a use case of crypto. The Venezuelan president introduced Petro as an alternate currency system because Bolivar failed miserably and wasn't showing any sign to recover.

But the introduction of petro didn't help the country in any way to come out of this situation. So it will certainly make a bad example if we associate it with cryptocurrency. Only Maduro's ego was fulfilled by it!