This is a deposition, not the trial. Lawyers ask as many questions as possible in the deposition and drill in on all problem areas looking for contradictions and undisclosed information. That's how the Waymo lawyers found out about Spider. "Waymo learned of Spider’s existence during the deposition of Asheem Linaval, an engineer Levandowski recruited from Google to join him at Uber..."[1]

In a trial, they only ask questions that whose answers are beneficial to their case. They know the answers are beneficial because they already asked the questions in deposition. If the answer is different at the trial, it is perjury. If the answer is the same, it helps their case.

[1] https://techcrunch.com/2017/04/26/a-waymo-filing-leaks-lidar...

So if Uber were simply in the wrong, their lawyers would not ask any questions at all?