Guyana, with it's small population and large geography, is a natural and easy target to become a transit point. There are limits on what the GoG can do to control this. The law enforcement resources are busy fighting crime in the populated areas and lack the manpower and mobility to cover the whole nation. How come Mexico cannot control their trade, how come the source nation still is Columbia with all it's own, and the US resources, bearing down. Afganistan's opium trade rebounded even with the presence of 140k US troops and all the military assets made available.
The drug trade is a big issue in Guyana and many other nations and it should not be politicized.