Or perhaps they accidentally stripped out something that WAS essential. They’d only had the plane for 2 weeks, so it would have to have been a rush job to pull out close to 5000 pounds of “non-essential” stuff.
Imagine that the cocaine was in milk bottles, now imagine arranging them in rows, layers and columns to accomodate 476 bottles; that is how much space 4 tons of powdered coke would require.
One gallon milk bottles.