Any devaluation of currency is due to central bank policies, if it is independent, it should favor the country; if it is not, it contributes to the government of the day to increase the liquedez to its benefit, causing inflation and devaluation; As the Nobel Prize winner in economics Milton Friedman said, the only one to blame for the devaluation is the central bank.
The majority of economic theories are scientifically and historically proven, if a government does it wrong, it is with alleviation and with the intention of damaging the country.