Did This Gorilla Just Roast Marshmallows?

This recently released clip from Monkey Planet shows a gorilla lighting a campfire and enjoying a snack. Many have speculated that this primate is either mimicking behavior or was taught, over a long period of time, to do this for the camera.
From BBC One:

Kanzi the bonobo lives in America and has learnt how to build a fire, light it using matches and toast marshmallows on it. It shows just how like us some primates really are.

What do you think?