A lot of words without any concrete proposals on how to solve the problem.

Telemetry is captured because after-the-fact analysis can’t be done retrospectively otherwise. If you can solve that time travel problem, people would capture less telemetry. I think the key thing is if you can do anomaly detection to capture the rare events because 90% of telemetry is garbage happy case telemetry that doesn’t really give you any extra insight. But doing that anomaly detection cheaply and correctly is extremely hard.