"[...] The widespread adoption of crypto assets could undermine the effectiveness of monetary policy, circumvent capital flow management measures, and exacerbate fiscal risks. Widespread adoption could also have significant implications for the international monetary system in the longer term."
Discussion
One of the measure they recommend:
1. Safeguard monetary sovereignty and stability by strengthening monetary policy frameworks and do not grant crypto assets official currency or legal tender status.
A direct hint to El Salvador which has been quite successful to detach from the IMF.