1. Oh, no, I get that. I'm more asking what Carrot Vision is. Is any effort made to explain other than "it's this random thing Judy's family invented"?
2. Yes, I'm familiar with two-way feeds. This is not remotely close to how they work. They are looking at and speaking directly to him. There are no monitors in sight, and the filming is supposedly being done by drones (a conceit that seems to be quickly abandoned), which are not themselves shown to have monitors.
3. Again, why include her in this specific project if she doesn't sing? It's not like she's some compelling character. The song is her whole thing.
4. Eef.