But you're absolutely right. They should be embracing BTC for the fact that it is able to hedge against the hyperinflation that is so rampant within countries in Africa historically.
But there is absolutely a conflict of interest between the central bank/authorities and the decentralisation that crypto brings to the table. Not surprising whatsoever that such a statement was made.
Imagine your domestic currency being is so volatile, cryptocurrency is less volatile and a better store of value. Because as much as everyone around here circlejerks to what a great "investment" bitcoin is, the fact remains that it regularly loses 50% of its value in a matter of days (the most recent instance barely a month out from today). The vast majority of fiat currencies are still a better store of value because they're less volatile, and the point of savings is not to be at risk that you don't know how much money you have saved because you can't predict the value of the underlying currency.