Yes, that was thought to be a difference but I have had red
Naga Morich from orange pods that came from Bangladesh.
The difference is that when left to ripen on the plant the
pods go a deep red. When imported the pods are picked green,
these green pods only ripen to orange. Naga pods are picked
green as they only last 2-3 weeks off the plant before going
rotten.
Try it with any chili, picked green the pod will go ripe, but
the color never develops the same as if it were left to ripen
on the plant. This is what happens with Naga Morich (Bih, Bhut,
Dorset...)
Tony.