The cross-examination of the expert witness by Toyota was really weak.
This could indicate that Dr Barr was proving a very credible witness under cross examination. Pressing matters further on the points that you suggest might have been counter-productive and reinforced Dr Barr's credibility with the Jury rather than undermining it, as the defence might hope. So they would move on and attack from a slightly different direction.
What are the engineering and design challenges in creating successful IoT devices? These devices are usually small, resource-constrained electronics designed to sense, collect, send, and/or interpret data. Some of the devices need to be smart enough to act upon data in real time, 24/7. Specifically the guests will discuss sensors, security, and lessons from IoT deployments.