Not dealing with the politics but just the Meta analysis. This shows a relatively weak showing for ivermectin. It is perhaps useful in early disease but fails to rise to the level of an efficacious treatment.
This is a very small number for a meta and is equivocal in results. As such from strictly a data interpretation it would make sense that a large RCT should be undertaken to achieve a definitive result.
The data on ivermectin is as clear as mud which is consistent with clinical observation.
Perhaps you need to look at the data from India.