In my opinion it is not logical. I believe that the political situation in Zimbabwe may have an impact on the price of bitcoin in the country but that there was such a difference in price I don't believe. With such a difference in price traders already would have pulled out of Zimbabwe dollars. For those who do not know say that the currency Zimbabwe uses US dollars. So I don't think what they are experiencing large financial problems even during the coup.
It is quite logical as the ministers want to exploit you by inflating your money away.
That would be true in most countries, but not Zimbabwe. In Zimbabwe, they don't have a currency of their own for the ministers to exploit you. They use US dollars. In Zimbabwe's case, I think the military is trying to establish control over all matters, including monetary policy.