I don't think so, the actor is supplying the 'raw materials', this is another tool for the director to achieve the truest representation of their vision, actors might appreciate not having to do an entire retake due to one duff line, they still get paid :)
And the next step will be to show different variations to multiple focus groups, then train a neural network to automatically select the set of blending weights for the film that are projected to maximize revenue, thereby automating the post production as well.
maybe, that sounds pretty dire though, how about interactive gaming where your input affects the mood of the conversation without the start/stop clip style used now.
