Of course the IMF and other incumbents don’t want Bitcoin to succeed. They have a lot to lose and will fight it.
Regarding CAR: asfaik SangoCoin was a fraudulent project, the person who convinced the President to make Bitcoin legal tender had a history of conducting scams. SangoCoin would have taken BTC and converted it into SangoCoin (what most would call a shitcoin)
My experience from being on the ground in similar corrupt countries is that corruption prevails. To say that IMF prevented Bitcoin adoption bc they shutdown SangoCoin, which would have been a great Bitcoin project is far fetched.