It is really hard to sell a liberation foreign policy when the group doing so is getting paid by strip mining the land in compensation for their services. Well, unless West is bad and always bad, but it is really hard to sell moral superiority by being mercenaries.
Because you don't just have a coup after having a stroke of insight from a night of binge drinking?
It's a movement led military units that have deep political and intelligence connections. They know a lot of things that aren't going to be admitted by the West.