They claim 3000 workers. A typical B&A plant has about 4000 employees and produces 3000 cars per week, and Tesla is building about 500. I'd say the CTO is blowing smoke.

I also don't understand the point about software. Very few car defects are related to software. It is stuff like rattles, and wind noise (NVH) that are common problems due to build issues. It is quite hard to fix a dashboard rattle with a firmware change.