Is AI finally good enough to shoot a product demo on its own, or human touch is still needed?

I generated a 20s product demo with Seedance 2.5 in a single take providing it with one product image reference and an example video transcript (posted in the comments). Do you disclose to a client how much AI is involved, or just let the result speak for itself?

Realistic AI Talking Head Video with Emotional Lip SyncAI

Video Creator | Character Generation, Lip Sync, Sound & Editing

The client needed a 30-second cinematic AI talking-head video featuring one woman delivering the same line, "I'm fine," with six distinct emotions. I created the character visuals, generated and refined the performances, and handled lip sync, sound and editing. The focus was consistent identity and room details, realistic skin, subtle facial expressions, natural body movement and believable emotional transitions.

Same line six times is a tough brief, since the words can't carry any of it and everything sits on the face. With recurring characters, identity usually slips first on the strong expressions, not the calm ones. Did you lock her with one reference set across all six emotions, or adjust refs per emotion?