I'm positive that it's flooding.
Graduated Exposure involves pairing the fear-inducing stimulus with relaxation techniques through repeated associations. Whilst she's exposed to the feather in increments, there's no evidence that any form of relaxation techniques are being paired (e.g. meditation, deep breathing, etc).
According to my notes, flooding involves bringing the client into direct contact with the anxiety -- or fear-producing stimulus -- and keeping them in contact with it until the conditioned response is extinguished. If this video was a demonstration of graduated exposure, it's more than likely that the therapist would use multiple sessions to extinguish the response - not go all the way in the one session. I'd also argue that it's flooding because we can see that her fear reaches a peak - to the point that she is in tears and shaking - and then begins to drop, which allows her to control her fear (seen through her decision of the feather being brought closer).
So yeah, I'm 100% sure that it's flooding.