The AI characters? Nothing about them feels right. The audio looks out of sync with the fake lip flaps. The dude's arm gestures are horrendous. It's AI/cgi, yet the fake background looks like a bad chromakey. You already pointed out some of the audio/voice issues.
> It's AI/cgi, yet the fake background looks like a bad chromakey.
I genuinely wonder if that's intentional. Maybe that looks more "realistic", and gives the audience something to stumble over that's not other AI artefacts?
The result to me looked more like a Zoom background replacement rather than a weather chromakey. That's what really looked bad to me. Even the full studio chromakey looks much better where the anchors are at a desk in front of a color vs a full studio.