Yes - of course there are many suspicions about who perhaps is financially backing these protests. Noboa has many enemies including the narco gangs and the illegal mining interests. And these people certainly have incentives to de-stabilize the government. So I agree with your assessment here 100% - but of course there is no real evidence to point to.

I did observe (and I have a photo of) a very large commercial truck waiting in line to get past checkpoint to go to the Paro. And I see taped over the spot on the outside of the truck where I think the vehicle ID goes. Also saw several vehicles with black plastic bags over their license plate. That sort of indicates people do not want to know where the money comes from to buy these vehicles.