Rotating the switch is part of accelerated life testing and what that means. You have to prove your model represents real life otherwise skeptics can raise questions. In toto Joe's video is simply data and viewers need judge what it means.
For mechanical models, if the test cycles generate heat, failure can be premature, because heat generated from friction has to be added to the model projection, as real life usage have periods of long downtime, consider as work only 8 hours of a 24 day as well as real life environmental considerations, field users in Canada are exposed to colder conditions than field users in Florida etc., UV exposure, humidity etc., which affects plastic rate of failure.
If the video data true as quoted below, and a cal certificate is part of the operational costs, the cost of mentioned calibration is high, it even pays to buy a new meter with papers rather than send it out for calibration. It makes the Keysight meters more attractive and economical with an expected working life limited by the calibration date, at which time its replaced, regardless of wear.
I did ask him to run his own test on the Keysight meter. This one is 2 years old and gets 10s of thousands of cycles yearly.
https://youtu.be/_EQdxZK0yHw