Add sources or clarify illustrative for "Real-World Example" sections

I noticed a few lectures have a section called "Real-World Example" or "A Real Transformation Story" that gives concrete numbers, but I could not find anything to verify them against.

For example:

• Lecture 03: a SaaS/e-commerce team on about 30 microservices, with 70% of tasks needing human intervention.
• Lecture 04: an AGENTS.md growing from 50 to 600 lines, task success from 45% to 72%, security compliance from 60% to 95%.
• Lecture 05: a 12-feature, 5-session experiment, completion from 58% to 100%, hidden defects from 43% to 8%.

I searched for a repo, case study, or experiment description behind these and came up empty.

If these come from real cases, please link the source. If they are teaching examples, please call them "Illustrative Example" or "Hypothetical Example" instead. That distinction would help readers know what is evidence and what is illustration.

Thanks!